There's a skull in the middle of the room with a slot on it, and four statues around it. Trolls are in the cages. I Think it is around level 14 in the quest released by DSI. I can't figure out what to put in it, or anything. I'm stuck. Also can't figure out how to take off that barrier off of the "gate" for level 5 in the same quest. (forgot name of quest, but only one officially released by DSI). Thanks in advance

^argh^