What's this? Rohtul Xel High School! You spelled my name backwards, you super-chiseler! 
Superboy #131 is an issue of the series Superboy (Volume 1) with a cover date of July, 1966. It was published on May 17, 1966.
Synopsis for "Lex Luthor, Imp"
Mister Mxyzptlk returns to Earth to plague Superboy. Lex Luthor seizes the opportunity and builds a machine to siphon off Mxyzptlk's powers and give them to himself. Angry that he was upstaged, Mxyzptlk starts a battle with Luthor with Superboy caught in the middle.
Superboy tricks Mxyzptlk into saying his name backwards, sending the imp home to the Fifth Dimension. Luthor retains his powers though. Superboy tries the same trick on Lex, but even when he says his name backwards, Lex's powers don't disappear. Superboy then examines the machine that gave Lex his power. After completing his analysis, Superboy realizes that since the secret of Luthor's power was first written in machine code; Lex must be made to recite his name backwards in that same code.
Appearing in "Lex Luthor, Imp"
Featured Characters:
Antagonists:
Locations:
- Fifth Dimension
- Smallville
- Luthor's Apartment
- Smallville High School
Items:
- Luthor's Analyzer Ray
- Luthor's Computer
Synopsis for "The Fists and the Fury!"
While handling an emergency, Superboy is suddenly attacked by three disembodied fists. Since the fists are not attached to bodies, the Boy of Steel is unable to fight back. Oddly, the fists break off their attack as suddenly as it began.
After one more strange encounter with the flying fists, Superboy changes into his Clark Kent identity. The fists come after him again, but before they can strike and expose his secret, they fly off in another direction.
Superboy deduces that the fists were created when he was accidentally exposed to Red Kryptonite. The fists were then drawn to him by a magnet, he had kept in the pocket of his cape. Each time the fists broke off the attack when Superboy neared a heat source which interrupted the magnet's pull. When the Red K wears off, the threat of the fists ends.
Appearing in "The Fists and the Fury!"
Featured Characters:
Supporting Characters:
Other Characters:
- Clark's Science Teacher
Locations:
- Smallville
- Smallville High School
- Smallville Museum
Items:
- Magnet
- Barrels of Popcorn Seed
- Medieval Weaponry
- Suits of Armor
- Pete Ross' Grill
Vehicles:
- Ford Tudor Police Car
- missile
Synopsis for "The Dog from S.C.P.A!"
While Superboy is on a Legion mission, Krypto patrols space, sees a colossal dog super-hero named Mammoth Mutt killed by a missile, and learns from the dog's dying breaths about the Space Canine Patrol Agents, a group of dog super-heroes, and the Canine Caper Gang, who sent the missile that killed him. Krypto helps free the SCPA, learning that each dog hero has a single super-power (such as Tusky Husky's ability to grow a long tooth, and Tail Terrier's elastic tail), and helps them defeat the evil Top Dog and his Canine Caper bunch. Krypto is admitted to the SCPA, then returns to Earth, awaiting the next summons from his fellow canine crimebusters.
Appearing in "The Dog from S.C.P.A!"
Featured Characters:
Supporting Characters:
Antagonists:
- Chief Top Dog (Single appearance)
- Canine Caper Gang (Single appearance)
- Doggysaur
Other Characters:
- Space Canine Patrol Agents (First appearance)
- Tail Terrier (First appearance)
- Tusky Husky (First appearance)
- Chameleon Collie (First appearance)
- Hot Dog (First appearance)
- Bull Dog (First appearance)
- Paw Pooch (First appearance)
- Mammoth Mutt (Single appearance; dies)
- Space Cat Patrol Agents (Single appearance)
- Atomic Tom (Single appearance)
- Power Puss (Single appearance)
- Crab-Tabby (Single appearance)
Locations:
- Planet of Dog-People
Items:
- Legion of Super-Heroes Statuettes
- Long-Range Missile
- Dinosaur Skeleton
- Viewer Monitor
Vehicles:
- Canine Caper Gang's Getaway Rocket
Notes
- "Lex Luthor, Imp" is reprinted in The Best of DC #7
See Also