Escape from Taur-nu-fuin
The Wilds of Rhovanion#77 (x1)
4C-D (16)
When Revealed: Remove Searching for a Way Out from the game. Starting with the first player, each player discards cards from the top of the encounter deck until he discards an enemy and puts that enemy into play engaged with him.

You can see light ahead from what must be the forest’s edge and it looks as if you will reach the other side, but then you hear the cry of enemies all around you. It seems that you will have to fight once more to escape from Mirkwood.
Forced: At the end of the round, raise each player’s threat by 1 for each enemy engaged with him.

This stage cannot be defeated while a player is engaged with an enemy. When this stage is defeated, the players win the game.