DC April, 1965
Reprints stories from Showcase #14, and Flash #106, 108, 117, and 123; Flash; Are You a Silent Witness (PSA)
Flash of Two Worlds; Pied Piper of Peril; The Man Who Changed the Earth; Here Comes Captain Boomerang; The Super-Gorilla’s Secret Identity
Gardner Fox, John Broome
Carmine Infantino, Frank Giacoia, Joe Giella, Murphy Anderson