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Mysteries of Unexplored Worlds #18 cover
Cover: Bill Montes & Charles Nicholas & Vince Alascia
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Mysteries of Unexplored Worlds #18

May 1960 · Charlton · 0.10 USD
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This issue is an anthology containing multiple stories. "Space Suds" follows advertising genius Ned Hilbert, who creates a product called Space Suds and partners with Professor Cooper to stage an elaborate hoax: a fake Martian invasion designed to unite world governments and prove humanity will fight a common enemy. "The Brain of Professor Mandel" depicts a man with extraordinary mental abilities who becomes a living "Ian Instrument" capable of pure thought, prompting someone to kidnap him and attempt to extract his brain for its superior intellect. Additional stories advertised on the cover include "Hail Hero in the Window," "The Forbidden Formula," and "The Man Who Didn't Belong."

Contains 5 stories
The Forbidden Formula
5 pp · Science Fiction

In a distant galaxy, a cosmic watcher named Codin is sent to Earth to prevent a scientist from accidentally discovering a formula that could destroy the entire Milky Way. As he observes the young researcher, Codin subtly manipulates events to block the experiment, unaware that the man’s actions may be part of a greater, unforeseen plan.

The Man Who Didn't Belong
5 pp · Science Fiction

In "The Man Who Didn't Belong," Jo, a quiet office worker, begins to notice strange things about his co-worker—moments of eerie foresight that feel too precise to be coincidence. When a visitor from another dimension arrives to reclaim the man, Jo is left wondering what it means to truly belong.

Hail Hero
5 pp · Science Fiction

In "Hail Hero," an astronaut who became a legend for being the first to reach Mars finds himself stranded 400 years in the future after a time warp. There, he learns his courage has shaped a unified human civilization, though he never expected to be its unseen architect.

In the Window
5 pp · Horror-Suspense

In the window box of a traveling carnival, a man sits motionless—his stillness drawing crowds, his identity a mystery. When a thief targets the show, he’s forced to confront the unsettling truth: is the figure in the glass a man playing dead, or a wax figure that might just be alive? Written by an unknown hand and rendered in stark, atmospheric art, this eerie five-page tale from *Mysteries of Unexplored Worlds #18* lingers in the silence between breaths.

The Brain of Professor Mandel
5 pp · Science Fiction

In "The Brain of Professor Mandel," the brilliant mind of a genius scientist seeks immortality not in the body, but in a supercomputer designed to carry on his intellect. When the experiment succeeds, the bond between man and machine proves too deep—death for one means the end for the other.

ComicBooks.com Value

Our Model is In Beta
Raw (VG) $22
CGC 9.0 · 1 in census $123
CGC 8.5 none in existence
CGC 8.0 none in existence
CGC 7.5 · 1 in census $28*
* estimate — limited direct-sales data at this grade
Our model’s value — refined as new sales data arrives · CGC census counts shown where available

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Full credits

writer Joe Gill
artist Bill Molno
cover pencils, inks Bill Montes
cover pencils Charles Nicholas
cover inks Vince Alascia

Reprints

Reprinted in Sinister Tales #151 (1977), Sinister Tales #218 (1987), Gwandanaland Comics #2331-A (2019), Silver Age Classics: Mysteries of Unexplored Worlds #4 (2022), Sinister Tales #27, Sinister Tales #97, Weird Planets #22

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