Unbalanced

Though you move quickly, the group seems to have become aware of you, as the blood trail quickly stops just around the corner. Searching the area where the trail grows cold, you see no way they could have passed you moving down the stairs. As you begin to trace the wall with your hand in search of a hidden lever or door, a tremendous burst of thunder emanates seemingly from the ground itself. Dust and rubble begin to fall in small chunks from the ceiling, and you notice a tiny sliver of dark light moving its way along the ceiling with short leaps.