This quest triggers immediately after you part ways with Yann, following your successful effort to help him escape St. Halssius's House of Healing. This escape takes place during the main quest, "Familiar Curses."
Now that Yann is back within the fold, the search for the rest of the scattered souls begins. Return to camp and speak with Marius.
Return to the camp. The fastest way to get there is by using the nearby Abyss Nexus. Once you arrive, speak with Marius. He is deeply concerned about the lack of word from Nair and Andrew.
During your conversation, Duane - another member of your squad - will also appear at the camp. After this brief interaction, this quest will conclude, and the next one - Traces in the Manor - will begin.
Concern over the scattered comrades has kept Marius pacing endlessly. Duane dispelled that somber air with a hearty laugh as he dragged in a Black Bear he captured on the way.
