----------paperback, a Very Good copy, some light wear, sticker pull on front cover, short tear at lower spine tip, some age toning to paper, 157 pages, a Canadian imprint, Silverberg also wrote under the names: David Challon; Loren Beauchamp; Don Elliott; Dan Eliot; Edgar Black; Alexander Blade; Lawrence L Blaine; Walter C Brown; W R Burnett; Walker Chapman; Roy Cook; John Dexter; Walter Drummod; Franklin Hamilton; Paul Hollander, Calvin Knox; Maureen Longman; Dan Lynch; Ray McKensie; Gordon Mitchell; David Osborne; Robert Randall; Lloyd Robinson; Mark Ryan; Lee Sebastian; Stan Vincent; Jonas Ward; L T Woodward, plus many pseudonyms for a number of short stories and novellas, any image directly beside this listing is the actual book and not a generic photo