Comic Title: Superboy #148
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: June 1968
On Sale Date: April 4, 1968 Newsstand Date April 4, 1968
Source: Direct Currents, Superman's Girl Friend Lois Lane #83, Page 31

Copyright Date April 4, 1968
Source: Library of Congress, Periodicals 1968

Newsstand Date April 4, 1968
Source: Comic Reader, #65

Frequency: Monthly, with the exception of Feb., Aug. and Nov.
Cover Price: $0.12
Page Count: 32
Editor: Mort Weisinger

Title: "The Canine That Outclassed Krypto"
Pages: 11

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

Writer: Cary Bates
Penciller: George Papp
Inker: Frank Springer

Feature Character(s)

• Superboy (last appearance in Adventure Comics #368; next appearance in Adventure Comics #369)

Supporting Character(s)

• Jonathan Kent (last appearance in Superboy #148; next appearance in Adventure Comics #369)
• Lana Lang (last appearance in Superboy #145; next appearance in Adventure Comics #369)
• Krypto (last appearance in Superboy #140; next appearance in Superboy #154)

Villain(s)

• A Vram (a space bird; no further appearances)
• Two bank robbers (no further appearances)

Other Character(s)

• Zkor (a space dog; no further appearances)
• An alien zookeeper (no further appearances)
• Zkor's family (die in flashback; no further appearances)

Synopsis:
Superboy is called by an alien zookeeper to help track down a dangerous space bird that has escaped. The Boy of Steel recaptures the bird and saves a space dog in the process. The alien dog which possesses super powers follows Superboy back to Earth. The dog then tells Superboy telepathically that he is a Zkor and his originally family was recently killed. He requests that Superboy make him his new pet.

Zkor helps Superboy fight crime, but when Krypto returns to Earth he becomes jealous of the new pet. Zkor consistently outclasses Krypto. However, the alien dog sees that Krypto's feeling have been hurt, so Zkor feigns a weakness to Earth's rainwater. He then leaves the planet in search of a new master.