The Black Wheel is a fantasy novel by American writers A. Merritt and Hannes Bok. Merritt had completed the first seven chapters, roughly 20,000 words, before his death in 1943. Bok wrote the remainder of the novel, twenty chapters of more than 60,000 words, working from "a sketchy plot outline" left by Merritt. The story concerns the discovery of a centuries-old shipwreck, complete with the preserved bodies of its crew, and the consequences for the passengers and crew of the cruise ship that comes across it. Source: Wikipedia (en)