World Gnawed by the Nameless

Playable during the movement/hazard phase on a company moving to an Underdeeps site. At the end of its movement/hazard phase, target company attempts to move to an additional Underdeeps site which it has not attempted to move to yet this turn. Another site card is played and a movement/hazard phase immediately follows. Return this card to you hand. All hazard creatures the company faces this turn keyed to Shadowholds [S] attack normally, not as detainment.