Hills of Hollin
The Fellowship of the Ring #99 (x3)
Location
2 (4)
Hills.  

While Hills of Hollin is the active location, each enemy in the staging area gets +5 engagement cost.

Forced: When Hills of Hollin is explored, each player raises his threat by 1 for each damage here.

For their defense in the night the Company climbed to the top of the small hill... –The Fellowship of the Ring