The dispel magic and knock spell seem to have done the trick. Shae pushes the door to the south open. Kahan's spell also seems to have been accurate. The air is stale but not poisoned.
The room itself is about 40 feet wide (east/west) by 30 feet long (north/south). The northern part has a stone floor and the southern part has wood floors. The ceiling is about 15 feet above you and is all stone and unremarkable.
The first thing that comes to your attention is the bear trap right in front of the door. It must have been sitting there for years (however long Sark was imprisoned by Tarimar), but it still has not been sprung. You can step around it onto a 5 x 15 foot entry area and look around.
You notice the following strange features:
There are 4 chests, one on each wall (as shown in the map). They appear identical and are closed.
On the south wall are three strange mounted figures. On the southwest is an orb made out of some sort of steel with spiral edges (like a baseball). In the center is the stone head of a dragon. On the southeast wall is a bluish crystal.
And on the east wall is a strange eyeball protruding from the wall and surrounded by a grayish brown mass of what can only be described as vines, bark or roots. Unlike the other figures, the eyeball appears somehow living. It eerily rotates in your direction as you enter the room.
On the northern wall on the west side, you notice some sort of moss or ochre growing on the wall. It is different from the stuff in the northern rooms and appears to have grown there due to the long encroachment of time.
As Sark peers in the room, he nods slowly.
"This was one...Tarimar...uh...research room. Experiment room. He...uh...keep...research--notes--in two chests. I...see four chests never before. Only two."