Ick! Why can't they have more pleasant dreamscapes?

Dairine shuts up, opting to watch Conan instead. He's bound to slip her a clue sooner or later. As her eyes adjust to the darkness, she is able to discern their surroundings. Following his lead, she sneaks a peek deeper into the cave, but ducks down when she spots the other men.

She stares back at Conan, eyes wide. What the heck is going on?