Krizt can only be interacted with if approaching Moonrise Towers for the first time. She will probe the party through the use of her own Mind Flayer Parasite Specimen. Upon recognizing the party lead as a True Soul, Krizt asks for news from the field; the party can respond with a variety of dialogue options, but upon asking Krizt why she is on guard duty will have her reveal it's to recognize fellow True Souls.[note 1]
Once entering Moonrise Towers, she will start heading towards into the towers and then soon disappear. The party can later find her corpse in the Oubliette, at X: 625 Y: -89, where she can be looted.[note 2]
↑The dialogue options with Krizt are nearly identical to the ones of Zealot Malik, except for a few shallow differences in wording.
↑It's implied by Zira and Soreni's dialogue together that Krizt has most likely undergone an audience with the Absolute, and was then soon disposed of.