duergar scouts in Delar-tol

A Dark Tunnel in the Mines [Exits: east west] A long lizard scurries along the tunnel. A long lizard scurries along the tunnel. A duergar scout steps out of the shadows. A duergar scout's backstab === OBLITERATES === you! A duergar scout is in perfect health. You step out from your cover. A duergar scout parries your claw. A duergar scout parries your claw. You dodge a duergar scout's crush. You dodge a duergar scout's pierce. You dodge a duergar scout's crush. A duergar scout is in perfect health. is that supposed to happen while I'm creeping, considering these guys can't see me if I'm camouflaged and they try to track me?