Comic Title: Action Comics #399
Publisher: DC (National Periodical Publications, Inc.)
Address: 909 Third Avenue, New York, NY
Cover Date: April 1971
On Sale Date: February 25, 1971 Copyright Date February 25, 1971
Source: Library of Congress, Periodicals 1971

Frequency: Monthly
Cover Price: $0.15
Page Count: 32
Editor: Murray Boltinoff

Title: "Superbaby's Lost World"
Pages: 7

Feature(s):
Superman (of Earth-1)

Writer: Leo Dorfman
Penciller: Curt Swan
Inker: Murphy Anderson

Feature Character(s)

• Superman (no appearance)

Guest Star(s)

• Superbaby (last appearance in Superboy #167; next appearance in Superboy #178)

Supporting Character(s)

• Jonathan Kent (last appearance in Superboy #167; next appearance in Superboy #178)
• Martha Kent (last appearance in Superboy #167; next appearance in Superboy #178)

Villain(s)

• Connie and Hyde (jewel thieves; no further appearances)

Comments:
This story takes place when Clark was a toddler.

Synopsis:
The Kents visit and amusement park. Clark gets separated from his foster parents. Two jewel thieves offer to help Clark, but they are really using him as a cover to hide from the police. When Clark begins using his powers, the thieves nearly drown. Clark then takes them to a fake volcano, where the smoke nearly kills them. Clark uses his super-breath causes the crooks to fall from the top of the volcano into the waiting hands of the police. No one believes their story about a super-child. The Kents are able to find Clark and take him home.