The book contains seven short stories, novelettes and novellas, five of them featuring the author's dimension-traveling protagonist Hanville Svetz, including the title story, one in his "Teleportation" series and one in his "Magic Goes Away" series, together with an afterword. The Svetz tales were later included in the collection Rainbow Mars (Tor Books, 1999).[1]
The title story has also been adapted into a comic book version by Allan Moniz, and with artwork from Jose Delbo. It was published by Starstream #2 (1976), an anthology of science fiction comic stories.[2]