This is a good, if somewhat somber in tone, collection of nine stories by Silverberg. The oldest is Hidden Talent, from a 1957 issue of If, and the most recent is Something Wild is Loose, from a 1971 anthology that Silverberg edited himself, Mind to Mind. (Curiously, it's the only original story in that book.) Flies originally appeared in Harlan Ellison's iconic Dangerous Visions, and also included is a story he wrote in collaboration with Ellison, The Song the Zombie Sang, which, improbably, was first printed in an issue of Cosmopolitan in 1970. My favorites were How It Was When the Past Went Away (from an original anthology called Three from Tomorrow, also possibly edited by Silverberg in 1969), To See the Invisible Man (from a 1963 issue of Worlds of Tomorrow), and To the Dark Star (from another original anthology, The Farthest Reaches edited by Joseph Elder in 1968.) My only complaint was that I'd read almost all of the stories in other earlier Silverberg collections. This one has a very cool Paul Lehr cover that shows his usual rounded cityscape, but this time in a wineglass.