As the door fully opens, the extent of the room is revealed.
[spoiler]70x65[/spoiler]
There are six beds in all, each with a backpack on it. In the middle of the room is armor stands and weapon racks. On the far wall there is an actual table, with what appears to be a small feast, and more beer than could possibly be consumed in one sitting.
The room itself appears to be of better workmanship than the small room you are exiting from. With two iron doors, in opposite corners, as the only other visible exits.
As each of you crosses the threshold, the runes flare, causing another orb to glow.
[spoiler]He took one from the wall of the room.[/spoiler]