What's your solution, then? Shake them until they remember?

[Please, he's all ears.]

They do have some memories, and it fluctuates. All signs point to the fact that this will fade in time, and that rushing it is useless. And if it were a true danger to our group in a way that would endanger our exit from this world, I am quite sure our patron would have informed us.

Rushing head first will solve nothing. Observation hurts no one.