Terata

The terata are monsters created by the Jaff to fight Fletcher. They are described as horrifying, and seem to take different shapes, as they are made from the worst fears of people.

Hallucigenia

The hallucigenia are fantasies brought to life by Fletcher to fight the Jaff. They take whatever bodily forms of the thoughts used by Fletcher to create them.

Letters

Jaffe discovers the secret show by reading dead letters in Nebraska, which causes him to embark on his quest in the first place.

Lix

The lix are snakelike creatures created by Kissoon. The shaman uses them to bully and murder people who stand in his way.

Nuncio

The Nuncio is a fluid discovered by Fletcher that causes living tissue to evolve.

Cross Medallion

Jaffe also discovers a strange cross medallion in the dead letter room that he takes with him and eventually shows to Tesla.

Knife