The boss was thirty feet tall, its horns on its head and back adding another seven feet. Two massive horns came from the thick armored plates as the bright glowing red eyes watched them approach. A smile of fire came from the maw of the beast. Its back had four giant spikes sticking off to the sides, curling upward slightly, almost looking like wings. Massive claws were on its armored hands and its feet had matching weapons of destruction where its toes were.
https://archive.org/details/tsr02011advanceddungeonsdragonsadd1steddungeonmastersguide/mode/2up
