Infiltrate Moonrise Towers

Infiltrate Moonrise Towers is a quest in Act Two of Baldur's Gate 3. It can be started in various ways after entering the Shadow-Cursed Lands.

Objectives

Objectives and journal entries may vary pending player decisions and outcomes.

Reach Moonrise Towers.

• The dream visitor told us to go to Moonrise Towers and infiltrate the cult of the Absolute. The cult's secrets may teach us how to free ourselves of these parasites.
• We reached the shadow-cursed lands. We should find Moonrise Towers, which is where the parasites are coming from.
• We met a drider who worships the Absolute. He can lead us to the heart of the cult in Moonrise Towers, where we may find answers.
• Harpers attacked the cultists we travelled with. We decided to help the Harpers, and fought against the cult.
• We found a Moonlantern that will protect us from even the deepest parts of the shadow curse. With it, we can safely reach Moonrise Towers.
• We learned about a place nearby that is protected from the shadow curse. The people there may know how to get to Moonrise Towers safely.
• Harpers are trying to discover how the Absolute's cultists safely traverse the shadow curse. If we help them, we might find a way to reach Moonrise Towers.
• We met a group of Harper scouts travelling through the shadow-cursed lands, and defended them against shadows. Grateful, one of them showed us where to find a safe haven nearby.
• We reached Last Light Inn, a safe haven in the shadow-cursed lands. Jaheira, the Harpers' leader, let us in after we gained her trust. We should see what we can learn from the occupants about the Absolute.
• We met the cleric Isobel. She said that our parasites could help us infiltrate the cult of the Absolute and find the source of Ketheric's power.
• We met Marcus, a True Soul instructed to abduct the cleric Isobel from Last Light Inn and take her to Moonrise Towers.
• We saved Isobel from being abducted by Marcus for the Absolute. She said that our parasites could allow us to infiltrate the ranks of the cult of the Absolute.
• Jaheira, the Harpers' leader, told us to go to Moonrise Towers and infiltrate the ranks of the cult of the Absolute.
• Last Light Inn and its occupants were consumed by the shadow curse. It is no longer safe.

Infiltrate the cult of the Absolute.

• We reached Moonrise Towers. We need to infiltrate the cult's ranks and find the source of these parasites.
• We were granted entry to Moonrise Towers. The guards believe us to be True Souls, and have sent to speak to a high-ranking cultist named Z'rell.
• We witnessed a goblin attack Ketheric Thorm, the Absolute's Chosen, and strike a fatal blow. Ketheric recovered almost instantly. Something is making him invulnerable.
• Disciple Z'rell wants to entrust us with a task - this could be our chance to further infiltrate the cult's ranks. We are to meet her upstairs at Moonrise Towers.
• Disciple Z'rell has asked us to find out what has happened to Ketheric Thorm's advisor, Balthazar - and, more importantly, find the relic he was sent to retrieve.
• We killed Disciple Z'rell. Whatever task she had for us, it won't help us to learn more about the cult now. We should search the tower for another way.
• We found Balthazar's diary and learned that he went on a mission to the Thorm Mausoleum to find the 'Nightsong'. This Nightsong seems to be the key to his invulnerability. We should follow this lead.
• Disciple Z'rell was impressed that we captured the cleric Isobel. She reminded us that Balthazar is our current priority.
• We found Balthazar in the temple below the Thorm Mausoleum. He asked us to help him find the relic for Ketheric.
• We learned that the relic Balthazar is hunting is the source of Ketheric's invulnerability.
• We found the 'relic' that is the key to Ketheric's invulnerability. It is a living aasimar called Nightsong, caged in the Shadowfell.
• We helped Balthazar return Nightsong to Moonrise Towers. Disciple Z'rell would be happy to hear this.
• Disciple Z'rell was pleased that we helped return Nightsong to Moonrise Towers. She has now asked us to kidnap the cleric Isobel from Last Light Inn.
• We successfully captured Isobel. This should please Disciple Z'rell enough for her to grant us an audience with the Absolute.
• We were unsuccessful in our mission to capture Isobel. Disciple Z'rell will not be pleased to hear that Isobel died.
• We told Ketheric of our success in retrieving the Nightsong. He wasn't pleased by our methods, and gave us an option - kneel at the altar and brave the Absolute's judgement, or go to Last Light and capture the cleric Isobel for him.

Investigate Moonrise Towers.

• With Moonrise Towers hostile to us, infiltration is no longer an option. We should search the tower ourselves to see what we can learn about the Absolute and the source of our parasites.
• We attacked Ketheric, but we cannot harm him so long as he is invulnerable. We need to find the source of his protection and strip it from him.

Defeat the cult of the Absolute.

• We found the necromancer Balthazar in the temple below the Thorm Mausoleum. He is looking for a relic for Ketheric Thorm. We should make sure we find it first.
• We defeated the necromancer Balthazar, failing to assist him in his mission to retrieve a relic for Ketheric. The relic is clearly important for the Absolute. Finding it ourselves may help us against the cult.

Request an audience with Ketheric Thorm.

• We succeeded in capturing Isobel at Last Light Inn and sending her to Moonrise Towers. We should report to Ketheric.
• We failed to capture Isobel, but because of our success with Nightsong, Disciple Z'rell has granted us an audience with Ketheric Thorm. He will be the one to pass judgement upon us. We can find him on the roof of Moonrise.
• Disciple Z'rell was pleased that we successfully captured both Nightsong and Isobel. She has granted us an audience with Ketheric Thorm on the roof of Moonrise.

Receive judgement at the altar of the Absolute.

• We met with Ketheric Thorm on the roof of Moonrise. He is upset that his daughter Isobel is dead. He has told us to kneel at the Absolute's altar to receive judgement.
• We met with Ketheric Thorm on the roof of Moonrise. He is pleased with our work and has granted us an audience with the Absolute. We can kneel at the altar in Her name.
• We forced our way onto the roof of Moonrise to speak with Ketheric Thorm. Though he is pleased we captured Nightsong, he is not impressed with our disregard for orders. He has told us we can either go back out to retrieve Isobel for him, or kneel at the Absolute's altar to beg forgiveness.

Assault Moonrise Towers.

• We killed Nightsong, so Ketheric Thorm is now vulnerable. This is our time to strike.
• We freed Nightsong and she flew across the shadow-cursed lands toward Moonrise Towers. She seeks to wreak vengeance on Ketheric Thorm.
• We met with Jaheira at the entrance to Moonrise. She and her Harpers are ready to help us with the assault, and to end Ketheric Thorm.

Confront Ketheric Thorm.

• We reached Moonrise Towers, where Nightsong has launched a siege. We will need to fight our way to Ketheric Thorm if we want to find the source of the power behind the parasites.
• We reached Moonrise Towers. With Nightsong dead, we will need to fight our way to Ketheric Thorm if we want to find the source of the power behind the parasites.
• Moonrise Towers is under siege. It's time to end Ketheric Thorm and the cult of the Absolute.

Defeat Ketheric Thorm.

• We attacked Ketheric Thorm on the rooftop of Moonrise Towers.

Quest Complete

• We did battle with Ketheric Thorm. Before we could defeat him, we were interrupted by a giant tentacle that carried Ketheric away - and Nightsong with him.
• We knelt at the altar for our audience with the Absolute. A great tentacled beast rose from beneath the tower, and transported us somewhere below.

Walkthrough

NOTE: The order of this walkthrough can vary greatly based on the player's choices. Using the sections to navigate the guide is heavily encouraged.

Meeting The Harpers

If the party chooses to use the elevator in Grymforge as part of Travel through the Underdark, the party arrives at a Sharran worship site. Directly ahead is an Absolutist Expedition Trunk with torches and various potions, which can be lockpicked (DC 10). Move west to find an exit to the Shadow-Cursed Lands (and a Weary Traveler for The Wizard of Waterdeep if he wasn't encountered already). The party arrives at the Ruined Battlefield. Right by the exit are two braziers - light them and take the torches, as they are required to avoid the shadow curse. in order to avoid succumbing to the shadow curse, a party member must hold a torch. Continue exploring westward to encounter some Harper Scouts, led by Harper Lassandra. The harpers are suspicious and order the party forward, when a harper named Yonas is grabbed by a Shadow and transformed by the shadow curse. A fight breaks about between the newly transformed Yonas, seven Shadows, and the Harpers.

After the battle, Lassandra thanks the party and urges them to carry a torch, as it's enough for the edges of the Shadow-Cursed Land. She tells them there is one place safe from the curse, the Last Light Inn and marks it on the map.

Meeting The Absolutists

If the party chooses to use the Mountain Pass route, as part of Travel through the Mountain Pass, then a goblin greets them and asks if they are the True Soul the goblin is expecting. The goblin tells the party to grab a torch, stick to the light as much as possible, and go to the rendezvous point to wait for the guide to Moonrise Towers. This starts Follow the Convoy.

Approach the rendezvous point and an orc named Kansif asks if they have what is needed to summon the guide. To summon the Drider guide, Vez explains that a special lyre is needed - the Spider's Lyre. This lyre can be looted off Minthara's corpse if she was killed during Defeat the Goblin Leaders, gifted by Minthara if she was sided with during Raid the Grove, or by rescuing Nere in Free True Soul Nere and siding with him. Once the lyre has been produced, a Performance check (DC 16) is prompted, but the result is the same whether it's passed or failed - the guide just makes a snide comment if it was played poorly. If the party does not have the lyre, then they can summon the guide using illithid powers (Wisdom DC 14). Additionally, Barbarians, Sorcerers, Bards, Clerics, and Paladins all have special dialogue to summon the guide.

The guide in question is a Drider named Kar'niss. He owns a functioning Moonlantern and has been tasked with shuttling cultist initiates to Moonrise Towers. When the party is ready, he'll ferry them to Moonrise. Once the party agrees, Kar'niss takes off and the party must remain in the glow of his Moonlantern to stave off the shadow curse.

During the trek, a group of Harpers ambush the convoy. The party has a chance to betray the convoy and help the Harpers, or fight alongside the convoy in the hopes of being more convincing at Moonrise. If the party allies with the Harpers, they take the drider's Moonlantern and refer the party to Last Light Inn. If the party sticks with the convoy, then Kar'niss safely guides them to the front entrance to Moonrise Towers.

The Last Light Inn

Once the party is at Last Light Inn, they are stopped by a Harper, who summons Jaheira. Jaheira is instantly wary of the party and summons vines to stop them. She produces a Mind Flayer Parasite Specimen and explains that the mind flayer tadpoles react to those infected. She brings the specimen up to the party and it reacts, causing Jaheira to believe the party are True Souls. If the tieflings were saved during Save the Refugees, then Mol appears to vouch for the party, explaining that they protected the Druid Grove.

Jaheira is shocked at how that's possible. She demands answers. Jaheira insists to know the whole truth, not accepting any vague answers. The Astral Prism gets Jaheira to back down, to which she invites the party in for a drink. If the wine is smelled first (Medicine DC 10, or DC 6 for rogues and druids), a hint of Klauthgrass is detected - a truth serum. Jaheira's trust can be earned regardless of if the serum is drunk and the question she asks is the same - is the parasite changing the party? Jaheira refuses to believe an assertion that the parasite isn't doing anything, but she will believe an assertion that the party is resisting the urge to change.

Once Jaheira trusts the party, she explains the situation. The leader of Moonrise Towers is a man named Ketheric Thorm. He's immensely powerful, and gifted with immortality. The Harpers have come to find a way to stop the cult and kill Thorm once and for all. The Harpers have had little luck, but Jaheira believes that the party can make a difference by infiltrating Moonrise as a True Soul. She tells the party to go upstairs and meet the cleric Isobel who is the one responsible for keeping Last Light Inn shielded.

The Abduction

After Jaheira starts to trust the party, she refers them upstairs to gain a blessing from Isobel. Isobel is on the balcony, finishing a prayer to Selûne in order to strengthen the wards around the Inn. She strengthens the party's resistance to the curse with a Blessing of Selûne. Additionally, if the Harper's took Kar'niss' Moonlanter, she gives it to the party. After the party is done talking with Isobel, chaos breaks out in the Inn. A Flaming Fist named Marcus reveals himself to be a True Soul tasked with kidnapping Isobel and bringing her back to Moonrise Towers. Sensing the tadpoles in the party, he tells them to aid him. This starts Resolve the Abduction. The party can either turn on the Harpers or choose to fight off Marcus. Additionally, a winged horror swoops in and kidnaps Mol, if she is alive.

Several things can happen:

• Marcus can be fought off, saving the Inn and its inhabitants.
• Marcus can knock out Isobel and kidnap her, with or without the party's help.
• Isobel can die.

If Isobel is kidnapped or dies, the protection around the Inn vanishes. All of the inhabitants inside succumb to the shadow curse. Some of them die instantly, while others become hostile and must be killed.

Moonrise Towers

After entering Moonrise Towers, the party is urged to go to the audience chamber. Enter it, and Ketheric is on a throne while one of his minions, Disciple Z'rell, is interrogating some goblins. Fezzerk is one of the goblins from the Goblin Camp and he pleads for his life. The party can attempt to plead their case with Ketheric, but he refuses to believe they have any worth and orders the new True Souls to handle it. He leaves for his quarters and Z'rell tells the party to do whatever they want with them. The goblins can be killed, or set free. The party also has the option to try attacking Thorm, but he simply walks away and tells Z'rell to deal with it, and the whole area becomes hostile.

After dealing with the goblins, Z'rell must be reported to. She's up the stairs behind the throne in the audience chamber. Speak to her, and she telepathically connects with the party to see how the goblins died. Next, she tries to figure out if the party is loyal to the Absolute. The player can attempt to distract her with romantic thoughts of their love interest (Persuasion DC 14), fill their mind with fake love for the Absolute (Deception DC 14), distract her with their hunger for power, or use a special dialogue for Monks, Rogues, or Fighters.

If successful, Z'rell gives the party a new task - track down Balthazar, a servant of Thorm's who the cult has lost contact with. He was last seen at the Thorm Mausoleum. Z'rell gives the party a key to his room and instructs them to take a Moonlantern and touch nothing else. However, the party can access a secret area in his room in order to start Balthazar's Experiment.

The Relic

Pursuing Balthazar leads the party to Grand Mausoleum. The Grand Mausoleum is north of the House of Healing. Enter the Mausoleum after being accosted by Raphael and there is a small puzzle to proceed forward. There are three paintings with buttons underneath them, press them in the following order to open the way: Moonrise Towers, Grief, General. Move north using the traversal gem to enter the Gauntlet of Shar.

The purple glyphs reveal a path to the umbral gem.

Once inside, Shar speaks to the party, inviting them to take on her trials and prove themselves worthy. The first task is to access an Umbral Gem at a statue. To do this, the party must snuff out eight Mystic Thuribles around the room. There are two levels to the north and south of each side of the room. The rooms are protected by pressure plates, which can be disarmed (DC 10) as well as vents that activate with the plates. Hit the levers to lower the Thuribles, then interact with them to snuff out their lights. Getting too close to the statue before the Thuribles are snuffed out causes it to magically repel the party. Any Moonlanterns must also be unequipped, as they emit light. Once the room is shrouded in darkness, purple glyphs are revealed around the statue. Follow the gaps in the glyphs to touch the Umbral Gem. This opens the way north.

Follow the path forward and the party eventually encounters a group of Reconstituted Duelists. They try to warn the party away, but are interrupted by tremors. A group of undead Justiciars attack the party and Umbral Tremors appear. The Umbral Tremors can summor more Justiciars until they disappear.

The tremors persist until the party moves west and encounters more Reconstituted Duelists. The tremors begin in earnest as more Umbral Tremors and Justiciars are summoned to attack the party. Several waves appear, until finally a Justiciar Crusader appears. Defeat it and its minions and the path opens, revealing Balthazar, a servant of Ketheric Thorm who has been tasked with retrieving the Nightsong. Balthazar tells the party to go and complete the trials for him, as the Justiciars have been making it impossible for them to move forward. The party can either agree to help him or attack him outright. If the party agrees to help him, they can convince him to offer help in the form of a summoning item that summons his brother, Flesh. Otherwise, Balthazar attacks with flesh and three Ghoul Medics.

The Trials of Shar

Soft-Step Trial

The key to the Soft-Step Trial.

After entering the room (X:-767, Y:-755), the party notices a sacrificial bowl. The party must give a blood offering to continue onto the trial. If Shadowheart is in the party, she offers to do this. Once the offering is given, the party can proceed to the trial.

The Soft-Step Trial is a stealth trial. There are two shadows patrolling a small maze, which the party must sneak past to get to the umbral gem. If the party is detected by a shadow, they are transported back to the start of the maze. Find the Soft-Step Key in the hidden room of the maze to proceed forward, lockpick the door open, or use Misty Step to bypass it entirely.

Self-Same Trial

As with the Soft-Step Trial, proceed to the offering bowl with an offering of blood to proceed.

In this trial (X:-767, Y:-727), the party faces replicas of themselves. If the party attacks a replica of a different character, they gain a debuff that lowers their ability scores. An easy way to end this trial quickly is to remove all equipment until the replicas appear, then add the equipment again, so that the replicas are weaker. Using only one party member can also help, as it avoids the debuff. Once the replica has been defeated, an Umbral Gem is dropped.

Faith-Step Trial

The dimly lit path in the Faith-Step Trial.

The Faith-Step trial can be accessed by moving north of the other two trials and then following the stairs down (X:-752, Y:-727).

To complete this trial, the party must walk along a chasm, with a barely visible pathway allowing them to move forward. After blood is offered to the trial, the room is plunged in darkness, making the path forward difficult to see (and impossible to see from the overhead camera view).

There are several ways to trivialize this trial:

• Use the spell Daylight to make the pathway extremely obvious and easy to traverse.
• Use Fly, Misty Step, or Dimension Door to bypass the pathway entirely by utilizing the patforms with the statues.

Yurgir's Umbral Gem

There is one more Umbral Gem, which is in the possession of Yurgir, the orthon that Raphael is hunting. The party can either kill him as part of Kill Raphael's Old Enemy, trick him into killing himself, or help him as part of Break Yurgir's Contract. Regardless of how the conflict is resolved, the party can take the gem, which is in front of his throne of skulls (X:-641, Y:-754).

The Silent Library

Before placing the Umbral Gems on the Pedestal of Reckoning, Shadowheart has one final request if she is in the party. She states that she needs to obtain the Spear of Night if she is to become a Dark Justiciar. The Spear is in the Silent Library.

The Silent Library is south of the Faith-Step Trial. Once inside, Silence is cast over the party. If the party is detected, a number of Justiciar Soulhunter and Justiciar Nightweaver attack. Defeating The Librarian at the centre of the room ends the Silence spell. With a successful Perception check, the party notices a button (X:-784, Y:-747) that unlocks the locked gate to the west.

To access the hidden room, the party must offer the correct book to the pedestal. The correct book is Teachings of Loss: The Nightsinger (X:-771, Y:-742) which is inside a trapped bookshelf (DC 15). Interact with the Riddle of the Night and combine it with the book to open the way. Inside is the Spear of Night, as well as Dark Justiciar Half-Plate and a Dark Justiciar Helmet. Giving the Spear to Shadowheart allows her to claim her place as a Dark Justiciar.

Return to the Pedestal of Reckoning and use the Umbral Gems to activate the moving disks. The path ends at a pool of water to The Shadowfell.

Shadowfell

WARNING: Entering Shadowfell locks the player out of many side quests, and pushes the player to the end of the act. Do NOT enter until all other business in the area has been resolved.

If Balthazar was not killed, he arrives in the Shadowfell immediately after the player, thanking them for their service in completing the trials. He floats ahead and tells the party to come with him to witness greatness. Once the party leaps to the heart of the Shadowfell, they learn the Nightsong is not an object, but an aasimar woman named Dame Aylin. She has been held captive by Thorm using the power of Balthazar to share her immortal life with him.

After this, several events can play out:

• If Balzathar is alive, the party can let him take her to Moonrise Towers
• If Shadowheart is in the party, she can kill the Nightsong and become the Dark Justiciar she always dreamed she'd be.
• Dame Aylin can be set free, resulting in a battle with Balthazar and requiring Shadowheart to be convinced to spare her.

If Shadowheart is not brought along, then she immediately confronts the party for denying her the destiny she'd always dreamed of. She leaves the party. Additionally, the Nightsong can only be killed by Shadowheart - otherwise, attempting to do so does nothing but annoy Dame Aylin.

If the Nightsong is freed, she thanks the party. If Shadowheart spared her, then she throws the Spear of Night into the abyss of the Shadowfell. However, Dame Aylin grants her a new weapon as thanks - the Moonlight Glaive. Then, Aylin flies off to face Thorm. After leaving the Shadowfell, Lady Shar subjects Shadowheart to unimaginable torment before sending her back to the mortal realm, and Shadowheart loses her favour.

If Shadowheart kills the Nightsong, she becomes the Dark Justiciar and gains the Shar's Spear of Evening. However, the party loses a valuable ally in the Nightsong.

Confronting Ketheric

The final meeting with Ketheric can go very differently depending on if the party aided him or sabotaged him. However, it always results in the subsequent quest, Defeat Ketheric Thorm.

Assaulting Moonrise Towers

If the party freed the Nightsong or killed her, Ketheric loses his immortality. If Last Light Inn is still intact, the Harpers meet the party at the front gates to Moonrise Towers. All the cultists come to fight back, and the party must fight them back with the aid of Jaheira and the Harpers. Once the main floor has been taken, Jaheira can be persuaded to come with the party to the rooftop, where Thorm awaits.

On the rooftop, the party has a brief moment to speak with Thorm. They can try to convince him that he can still redeem himself and stop the madness. Whatever is said, he cannot be convinced and must be fought. If Aylin was left alive, she joins the party in the battle. Once Thorm is defeated, a tentacle appears to whisk him away deeper into Moonrise.

An Audience with the Absolute

If the party lets Balthazar take the Nightsong to Moonrise Towers, then he tells them to meet them there to receive Ketheric Thorm's favour. Once the party arrives and speaks to Disciple Z'rell, she only lets them proceed if Resolve the Abduction is completed. The party must kidnap Isobel from the Last Light Inn to be allowed to see Thorm. If Isobel is already dead, then Z'rell lets that party up to face judgement.

If Isobel is kidnapped, Thorm thanks the party and tells them to pray at the altar as a reward. If Isobel dies, then he tells them to pray for the Absolute's justice. Either way, a tentacle appears behind the party as they pray at the altar and detects their Astral Prism. Thorm, knowing they possess the relic and that it cannot be taken for some reason, commands the tentacle to take the party down to Balthazar's lab, where he will find a way to sever the connection.

When the party comes to, they are trapped in Profane Wombs and must escape. After escaping, Balthazar must be defeated. He is joined by several undead servants. If the party killed Dror Ragzlin and Minthara, then their undead corpses will be among them.

Related Quests

• Seek Protection from the Shadow Curse
• Follow the Convoy
• Capture Isobel the Selûnite Cleric
• Resolve the Abduction
• Find Ketheric Thorm's Relic