Cal Donley regains consciousness on the orbital colony Daedalus. It's a beautiful place, home for more than a million people, but Cal doesn't remember leaving Earth. In fact, he can't remember his name or most of the past dozen years. What disaster has stripped away so much of his memory? Why? And what about the dried blood on his hands? Praise for Memory Blank "In the realm of novels, John E. Stith's Memory Blank...is a good solid mystery, a good adventure, and even a good science-fiction novel-all between one set of covers."-Starlog "Gave me the most realistic description of living in an O'Neill colony of anything I've read, and colony descriptions are interwoven through this fast-paced and intriguing story."-L5 News "This futuristic thriller is taut and gripping, the characters are believable, and the computer's pretty human, too!"-British Science Fiction Society Newsletter