[1] At 24 pages, Death Heart contained overland maps, regional descriptions, a short story, and historical overviews.

[2] Also included was reference material regarding The Howling Tower and its relevance to the Arduin multiverse, plus an overview of the last known locations of Caliban.

4: Death Heart was written by David A. Hargrave, with illustrations by Carolyn Schultz, and was published by Grimoire Games in 1980 as a 32-page book with two cardstock sheets.

In 2002 reprints of Death Heart were made available from Emperor's Choice Games and Miniatures, but were discontinued in August 2006.

Since then, the company folded Death Heart and all other Arduin dungeon modules into a single publication called "Vaults of the Weaver".