The Demon Is Happy To See You
You take the dumbwaiter to the Library.
It opens into a small, odd room. The walls are made of metal- maybe chrome, steel, or silver? Your torchlight reflects in a dazzling display.
The room is a perfect hexagon in the x-y plane, about 10' all around. A small metal door is the only other exit. Tiny smbols in what looks like dried blood are written all along the outer perimeter on the floor. In the middle of the room stands a large four-armed demon.
It grins at you, and says in perfect, lilting Common: "
Please enter. I've been so bored. Step foot within my guarded domain so that I might feast on your bones."