A dream about a cave
Wiki note: See A dream about a cave (Autofire) for the Autofire version.
SPOILERS AHEAD! BE WARNED!
You dream you are in a damp, dark space. The walls are clammy; you can feel greasy rock when you stretch out your hand. It is smoky in here, and the only light is flickering firelight.
Unlocked with Having Recurring Dreams: What the Thunder Said 4 - 6
Occurs with Unusual Frequency (20% as common as Standard)