Comic Title: Superman's Pal, Jimmy Olsen #29
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: June 1958
On Sale Date: April 17, 1958 Copyright Date April 17, 1958
Source: Library of Congress, Periodicals 1958

Frequency: Monthly, with the exception of Jan., May, July, and Nov.
Cover Price: $0.10
Page Count: 32
Editor: Mort Weisinger

Title: "Jimmy Olsen's Super Pet"
Pages: 8

Feature(s):
Jimmy Olsen (of Earth-1)

Writer: Otto Binder
Penciller: Curt Swan
Inker: Ray Burnley

Reprinted In:
Showcase Presents:Superman Family Vol. 2 TPB (2008)

Feature Character(s)

• Jimmy Olsen (last appearance in Superman's Pal, Jimmy Olsen #29; next appearance in Superman's Pal, Jimmy Olsen #29)

Supporting Character(s)

• Superman (last appearance in Superman's Pal, Jimmy Olsen #29; next appearance in Superman's Pal, Jimmy Olsen #29)

Villain(s)

• Two jewel robbers (no further appearances)

Guest Appearance(s)

• Krypto (first adult appearance; last appearance in New Adventures of Superboy #54; next appearance in Superman #130)
• Superboy (in flashback; last appearance in Superboy #65; next appearance in Adventure Comics #249)

Other Character(s)

• A dog catcher and a judge (no further appearances)

Flashback Appearance(s)

• Krypto (last appearance in Superboy #64; next appearance in Superboy #67)

Comments:
Krypto regains his youth in this story.

Synopsis:
When Jimmy Olsen uses his signal watch, Krypto answers. The Dog of Steel has returned to Earth after many years in space. Superman thinks Krypto will be a menace, because his mind has gotten old. Jimmy volunteers to keep Krypto, but the dog's powers continue to cause trouble. A judge finally forces Superman to take Krypto away.

The Man of Steel takes Krypto to a valley surrounded by Kryptonite. Due to the special properties of the valley, Krypto's youth is restored. Krypto then burrows out of the valley. The Dog of Steel then returns to space to romp and play, but Superman tells Jimmy that if Krypto returns, he will be Jimmy's pet.