Searching the Caves
Beneath the Sands#76 (x1)
1A-B (5)
Setup: Set Brood Mother aside, out of play. Add the Search objective to the staging area (Off Track face up).

Several members of your group were seized by spiders in the night and dragged away from camp. When the sun came up, you followed their trail to a large cavern entrance and entered in.
When Revealed: Discard cards from the encounter deck until X locations are discarded, where X is the number of players. Add each location discarded by this effect to the staging area.

Inside the cavern entrance you find a large maze of tunnels criss-crossed with all manner of prints. It is impossible to discern which are the tracks you seek, so you begin to search all around.