Detective Comics comic books issue 291

Cover art by Sheldon Moldoff. "The Creature from the Bat-Cave" starring Batman and Robin, pencils by Sheldon Moldoff, inks by Charles Paris; An alien creature lands on a spaceship inside the Batcave and soon is loose and rampant in Gotham City; Batman and Robin are out to capture it and after investigating the spaceship closely, they learn that the creature comes from another planet searching for a special object as part of that planet's tradition; Unfortunately, the alien creature is tricked by Earth criminals into showing them the location of the Batcave. "The Second Martian Manhunter" starring John Jones Manhunter from Mars, art by Joe Certa; A millionaire pretends to be the Manhunter to impress his girlfriend. Warden Willis humor page by Henry Boltinoff. Roy Raymond's Betrayal! starring Roy Raymond TV Detective, art by Ruben Moreira; Roy vs. Dan Diggins. 32 pgs., full color. Cover price $0.10.