Hemm, disguised as Harper Chelvin, is a Doppelganger posing as an elderly lightfoot halfling member of the Harpers. Originally on a mission to look into Bhaalist activity in the city and to find the whereabouts of the Mad Rashemaar, Chelvin was killed and impersonated some time ago.
After rumors of Bhaalist activity surfaced in Baldur's Gate, Jaheira ordered her Harpers to look into the machinations of the Cult of Bhaal, letting them uncover as much information as possible while she led another force of Harpers into the Shadow-Cursed Lands to defeat Ketheric Thorm. However, as Jaheira ordered the Harpers to concentrate their efforts in finding the Rashemaar, Chelvin and her cell of Harpers were either killed or captured, only to be brought to Orin; Chelvin herself was strangled to death by a doppelganger by name of Hemm, who was already disguised as her.[1]
The sole survivor of the Harper cell, a raw recruit by the name of Geraldus, would be used a live bait for Jaheira and the party to contact, in an attempt to ambush and silence them.[2]
Upon the party and Jaheira's arrival, Geraldus attempts - through the use of an old Harper code - to communicate that the Harpers present are traitors. Hemm, disguised as Chelvin, attempts to derail Geraldus' implications, while Jaheira, if present in the party, understands the code and mentions to the party that Chelvin seems familiar, and reminds her of Marcus. Failing to recognize the sign starts combat with the party Surprised, while recognizing the code and acting on it surprises the impersonated Harpers.
The impersonated Harpers all share the same doppelganger stat block, but there are stats in the game files for a non-impersonated version of Chelvin that is completely inaccessible in-game.
The doppelganger form reverts it back to 9m of movement.
The doppelganger form weighs 65 kg.
The original version of Chelvin had 15 STR, 14 DEX, 12 CON, 12 INT, 10 WIS, and 12 CHA; she has a melee archetype, halfling racial features, but no melee class features or equipment.
