Deeping Wall
The Treason of Saruman#38 (x4)
Location
4 (4)
While Deeping Wall is the active location, each hero gets +1 .

Forced: When Deeping Wall is explored, raise each player's threat by 4.

The Deeping Wall was twenty feet high, and so thick that four men could walk abreast along the top, sheltered by a parapet over which only a tall man could look. -The Two Towers