Room 7/21 is dark except for any stray light that makes its way through gaps in the briar walls on its north and east sides. Giant-sized counters and cabinets line the western wall while part of the southern-end of the room is blocked off by a transparent, nigh-indestructible material. The barrier ends part way across, and debris and two fallen doors suggest maybe there was a wall here once that the barrier joined with.
In the middle of the room, etched into the floor, is the outline of a circle. It once was filled with reagents and drawn runes to assist with summoning.
By the north, briar wall, a pair of large knives fashioned into a crude hedge trimmer click steadily and rhythmically. A giant-sized unseen servant spends all its time trying to trim back the hedge wall, which perpetually regrows from each snip.
Two round doors lead out of the room, one to the northeast and one to the southeast.