Comic Title: Aquaman #27
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: May/Jun 1966
On Sale Date: March 1, 1966 Newsstand Date March 1, 1966
Source: Direct Currents, House of Mystery #158, Page 31

Copyright Date March 1, 1966
Source: Library of Congress, Periodicals 1966

Newsstand Date March 1, 1966
Source: Newsdealer Magazine, V21 #2

Frequency: Bi-monthly
Cover Price: $0.12
Page Count: 32
Editor: George Kashdan

Title: "The Battle of the Rival Aquamen"
Pages: 25

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

Writer: Bob Haney
Artist: Nicholas Peter Cardy

Reprinted In:
Showcase Presents Aquaman Vol. 3 TPB (2009)

Feature Character(s)

• Aquaman (last appearance in Aquaman #26; next appearance in Justice League of America #44)

Supporting Character(s)

• Aqualad (last appearance in Teen Titans #2; next appearance in Teen Titans #3)
• Mera (last appearance in Aquaman #26; next appearance in Aquaman #28)
• Topo (last appearance in Teen Titans #53; next appearance in Aquaman #28)

Villain(s)

• Xen, his henchmen, and energy duplicates of Aquaman, Mera, and Aqualad (no further appearances)

Other Character(s)

• Blubber Man, Shell-Back Man, Eel Man, and Fluorescent Waterman (no further appearances)
• A lighthouse keeper (no further appearances)

Comments:
Part 2: "The Aquarium of Space"
Part 3: "The Underwater Round-Up"

Synopsis:
Aqualad is confused when he is suddenly attacked by Mera and Aquaman. While avoiding Mera's hardwater scoop, he discovers that his attackers are imposters. The real Aquaman and Mera arrive to help Aqualad and subdue their duplicates, whom then disappear.

Aquaman discovers the imposters were energy duplicates created by an alien zookeeper named Xen. The alien wants to catch Aquaman for his undersea zoo, so he creates another set of duplicates. The new duplicates are giants, and one is able to abduct Aquaman, Mera, and Aqualad.

Before Xen can leave Earth, Aquaman summons his fish subjects to break him loose along with other alien prisoners. Xen sends an army of duplicates to stop his escaped prisoners. While the abductees fight to defend themselves, Aquaman and Mera steal the duplicator ray from Xen. Using duplicates under his own control, Aquaman defeats Xen's forces, and sends the aliens home with their abductor in custody.