Notes: • Unbound signatures from the FPCI printings of Stapledon's collecton Worlds of Wonder and Leinster's novel Murder Madness were combined to form this omnibus. • The 1979 edition of Currey states that 500 copies were so bound. The 2002 edition of Currey revises this number to 300 which matches other sources (Eshbach, Chalker/Owings). • Each work has a separate title page and half-title page from the original sheets. No new title page was added for the omnibus and the title is from the jacket and spine. • Jack L. Chalker credited the cover artist as Laura Ruth Crozetti in "On SF Publishing: Son of Daddy!" from Fantasy Newsletter No. 62, September 1983. However, he later indicated that it was "Walter" in Chalker/Owings which matches the credit on the front jacket flap.