Comic Cavalcade comic books issue 21

Cover art by Everett E. Hibbard. The Siege of the Flying Mermaids, script by William Moulton Marston (signed as Charles Moulton), art by Harry G. Peter; Wonder Woman must battle an evil group of mermaids that were created from tiny sharks by a formula invented by Gerta, willful daughter of Paula von Gunther. Mutt and Jeff strips by Al Smith (signed as Bud Fisher). Behind the 8-Ball--Just a Story, script and art by Howard Purcell. The Making of a Reporter starring The Flash, art by Martin Naydel. Mixy Pixy Brews a Bruise starring Hop Harrigan, script and art by Jon L. Blummer. O'Malley the Cop starring O'Malley of the Fourth Precinct, script and art by Irwin Hasen. The Man Who Couldn't Fail starring Green Lantern, script by John Broome, art by Paul Reinman; Alan Scott is summoned to his old Alma Mater in an attempt to locate the "brain child" of the university who mysteriously disappeared. 76 Pages, Full Color. Cover price $0.15.