- Script:
- Jerry Siegel (pp 1-3, 10); Otto Binder (pp 4-9)
- Pencils:
- John Forte (pp 1-3, 10); George Papp (pp 4-9)
- Inks:
- Sheldon Moldoff (pp 1-3, 10); George Papp (pp 4-9); Al Plastino (Superboy and Clark Kent faces)
- Colors:
- ?
- Letters:
- ?
- Job Number:
- B-1048
- Genre:
- Superhero
- Characters:
- Legion of Super-Heroes [Superboy [also as Clark Kent]; Chameleon Boy; Mon-El; Element Lad; Saturn Girl; Lightning Lad; Sun Boy; Brainiac 5]; Dev-Em; Radiation Roy; Proty II; Krypto; Molock
- Synopsis:
- Dev-Em arrives at Legion headquarters as a member of the Inter-Stellar Counter-Intelligence Corps on a mission to nab the elusive leader of the Cosmic Spy Legion, Morlock the Merciless, but loses the assignment to Superboy.
- Reprints:
There is an "Editor's Note" at the bottom of the first page announcing the change in frequency of Superboy from 8-times a year to monthly.