Reliquary

According to a definition at the beginning the story, a reliquary is a "shrine or coffer for displaying an object, bone, or body part from a saint or deity."

The Cloaca Maxima

The name of the waterway where Snow goes on his first dive as part of the police scuba team.

Route 666 Community

An underground community led by the man who calls himself Mephisto.

The Physical Anthropology Lab

Where Margo goes to retrieve the skeletons for Dr. Frock.

Palyhymnia Club

Where Smithback is when he is asked about the bodies being moved and realizes where they've probably been taken.

Mbwun

Also called the "Museum Beast," this is the formal name of the beast responsible for the first museum murders.

Linnaeus Hall

The multi-media room in the Museum where Margo Green and the others involved in the case meet to confer.

The Drake

Where Pendergast lives.

The Devil's Attic