Encounter set:
Foundations of Stone
Encounter info:
Foundations of Stone, Twists and Turns, Goblins of the Deep, Deeps of Moria
When Revealed: Create you own staging area. Reveal 4 cards from the encounter deck and add them to your staging area.
Forced:
After the 5th progress token is placed on Old One Lair, join another player at the beginning of the travel phase. If you cannot join another player, all players continue on to stage 5 together.