45 GRELL. A grell floats in this room. The ceiling height is thirty feet and the creature usually floats at least fifteen feet off the ground. It will attempt to attack from above.
Grell (AC 4; MV 12”; HD 5; hp 17; #AT 10 tentacles and 1 beak; D 1-4 (X 10)/1-6; SA Paralyzation; SD Impervious to electricity; XP 925)
The grell is reasonably intelligent and has an understanding with the yvarts, who occasionally give it offerings of food and water in exchange for safe passage.