While Den of Night is in the staging area, it gains:"Forced: After a `When Revealed' effect is canceled, place 1 resource on Shelob."

Travel: Place 1 resource on Shelob to travel here.

Here was some opening in the rock far wider than any they had yet passed; and out of it came a reek so foul, and a sense of lurking malice so intense, that Frodo reeled. -The Two Towers