Comic Title: Justice League of America #115
Publisher: DC (National Periodical Publications, Inc.)
Address: 75 Rockefeller Plaza, New York, NY
Cover Date: Jan/Feb 1975
On Sale Date: October 3, 1974 Newsstand Date October 3, 1974
Source: Comic Reader, #111

Copyright Date October 3, 1974
Source: Library of Congress, Periodicals 1975

Frequency: Bi-monthly
Cover Price: $0.60
Page Count: 96
Editor: Julius Schwartz

See Also: The Guide to DC Giants

Title: "Indestructible Creatures of Nightmare Island"
Pages: 24

Feature(s):
Justice League of America (of Earth-1)

Writer: Gardner F. Fox
Penciller: Mike Sekowsky
Inker: Bernard Sachs

Reprinted From:
Justice League of America #40 (1965)

Feature Character(s)

• Justice League of America (last appearance in Justice League of America #38; next appearance in Justice League of America #41)
• Superman (last appearance in Superman's Pal, Jimmy Olsen #88; next appearance in Superman #181)
• Batman (last appearance in Batman #175; next appearance in Detective Comics #345)
• Flash (last appearance in Flash #156; next appearance in Showcase #59)
• Green Lantern (last appearance in Green Lantern #40; next appearance in Green Lantern #41)
• Wonder Woman (last appearance in Wonder Woman #158; next appearance in Showcase #59)
• Aquaman (last appearance in Justice League of America #38; next appearance in Aquaman #24)
• Martian Manhunter (last appearance in House of Mystery #154; next appearance in House of Mystery #155)
• Green Arrow (last appearance in Justice League of America #38; next appearance in Justice League of America #41)
• Atom (last appearance in Atom #21; next appearance in Atom #22)
• Hawkman (last appearance in Hawkman #10; next appearance in Hawkman #11)

Supporting Character(s)

• Snapper Carr (last appearance in Justice League of America #38; next appearance in Justice League of America #41)

Villain(s)

• Chung Ka and his men (a group of bandits; appear in flashback only; no further appearances)
• Mirror Master (last appearance in Flash #155; next appearance in Flash #161)
• Shark (last appearance in Green Lantern #28; next appearance in Action Comics #456)
• Penguin (last appearance in Batman #169; next appearance in World's Finest Comics #159)
• Captain Cold (last appearance in Flash #155; next appearance in Flash #166)
• A magician, a fire creature, a golden bear, a stegosaurus, a giant crab, an animated marble statue, a tree dryad, a whirling sand-being, and a bird of prey (all creations of the Corti-Conscience machine; no further appearances)

Other Character(s)

• Andrew Helm (an occult scientist and inventor of the Corti-Conscience machine; no further appearances)
• Helm's parents (die in flashback; no further appearances)
• Chandra Gopar and other lamas of Ta Ming (a mystic city; die in flashback; no further appearances)
• An unnamed Latin-American dictator and his troops (no further appearances)

Cameo Appearance(s)

• Moses, Jesus Christ, Confucius, Mohammed, and Buddha ()

Synopsis:
After his parents are slain by bandits, young Andrew Helm is adopted by the lamas of Ta Ming, a city that appears on Earth only when a kinetic barrier is lifted. He becomes a master of science and astral projection, but when he reaches maturity, the mystic city is ravaged by the same bandits who killed his parents, and he is forced to flee for his life.

Finally he invents the Corti-Conscience machine, which forces everyone on Earth to hear and obey the urgings of their better natures. All criminals reform, wars stop, nations disarm, and the world becomes a true utopia. But when Helm accidentally remains out of his body in astral form too long, he is unable to reenter it and adjust the machine's controls, so that evil runs rampant in a backlash effect. Even the members of the Justice League are afflicted with a paralyzing apathy, until Superman uses Green Lantern's power ring to cure them, and they go into action to deal with the worldwide destruction.

While Superman, Green Lantern, and Wonder Woman stop a series of wars, Flash, Batman, and Aquaman track the radiation of the Corti-Conscience device to Helm's island home. Joined by Hawkman, Atom, Green Arrow, and J'onn J'onzz, the heroes invade the island, get past Helm's defenses, and battle an aggregation of unstoppable creatures, each preying on one of the members' special weaknesses. It is Hawkman who discovers that the creatures are mere illusions, summoned from their subconscious minds. With these illusions banished, the League is able to turn off the machine, and end its threat to Earth.