Cover by Murphy Anderson (art) and Jack Adler (photo). Stories by Mann Rubin, Gardner Fox and unknown. Art by Jim Mooney, Sid Greene and Ruben Moreira. Stories to stagger the imagination. "The Martian Joke!" by Mann Rubin and Jim Mooney, reprinted from Strange Adventures (1950 1st Series) #24 - Martians don't know how to laugh! So they send a martian, Exerel, to find the secret of laughter. Meeting Bud Hadley, an ex-comedian hunted by police, Exerel bargains with him for the secret. Plus: Star Rovers tale "How Can Time Be Stopped?" by Gardner Fox and Sid Greene, reprinted from Strange Adventures (1950 1st Series) #163 - The Rovers must figure out how to stop the lizard aliens who are planning to conquer Earth with a time-weapon that has already turned Homer into an old man and Karel into a teenager. And: "You Stole Our Planet" with art by Ruben Moreira, reprinted from Unexpected (1956 DC) (Tales of ...) #20 - Working on a way to create a barrier against nuclear fallout, two scientists are visited by creatures accusing humans of having stolen their world. Eventually the creatures realize they are not on their planet and the scientists reverse their experiment, sending the creatures back to their universe. 32 pages, full color. Cover price $0.20. Grade: VG/FN 5.0 explanation of grade Condition: Used (collectible)