Not much to report. The party descended into the cave below the Ecaterine Husk. There, they encountered a pair of babau demons that quickly became a quartet (16% odds of both demons summoning help). After a respectable fight, two demons were killed, one was dispelled, and the last greater teleported away into the night.
Deeper in the cave, they found a magic circle and a runestone beneath which was buried the phylactery containing St. Ecaterina's pulverized bones and the Holy Symbol of Ravenkind. A combined round of Knowledge checks managed to uncover all of the lore about the relic and how to unlock its powers.
At the very end of the session, Jamie's fighter received a sending from their superior in the Lightbringers asking for a report on their mission.