Black Altars is a collection of six weird fiction stories.

Contents:
- Introduction by Quentin S. Crisp
- Lichen
- Nephilim (previously published in Stephen Jones's collection Visitants)
- Patient 704 (revised/altered version of this story appears in author's Glyphotech)
- Mysteries of the Abyss (first published in Dagon magazine in 1989)
- The Ailuromorph
- Dedicated to the Weird