First published	1950
Publisher	Simon & Schuster
Format	Hardcover
Type	Novel
Cover art	Lew Glansman
Pages	240

Notes

Fixup novel with:

• Chapters 1-6: "Black Destroyer" 1939
• Chapter 7: linking material
• Chapters 8-12: "War of Nerves" 1950
• Chapters 13-21: "Discord in Scarlet" 1939
• Chapters 25-28: "M33 in Andromeda" 1943

Icshi notes: "most of the scenes featuring Grosvenor and Nexialism were newly added" to the novel. Grosvenor was not in the two earliest stories "Black Destroyer" and "Discord in Scarlet". He was added into the retelling of those stories and his role in the content from "M 33 in Andromeda" is much more significant. Grosvenor is the main character in "War of Nerves", but even with that Novelette being published earlier the same year, there are significant changes in the novel version of those events. There is also additional content added to the novel, particularly involving Grosvenor and the rest of the crew, and in particular between Grosvenor and Kent who is the Grosvenor's nemesis amongst the crew.

No statement of printing on the copyright page Cover artist credited on front jacket flap