The Joker returns to haunt the Caped Crusaders, this time with a new member added to his gang: Gaggy, who makes The Joker laugh, which then inspires the Clown Prince of Crime with new crime ideas.
More by Gardner Fox, Jack Schiff, Henry Boltinoff, John Broome, Sheldon Moldoff & Bob Oksner
Michael Uslan, Bill Finger, David Vern Reed, Dave Wood, France Herron, Gardner Fox, John Broome, Bob Kane, Dick Sprang, Sheldon Moldoff & Carmine Infantino