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Crypt of Shadows #20 cover
Cover: Aubrey Bradford

Crypt of Shadows #20

Oct 1975 · Marvel · 0.25 USD
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In "The Martian Who Stole a City!", a skeptical college professor finds himself caught in a cosmic mystery when he’s abducted by aliens who reveal a startling truth: he’s not human, but a long-lost Martian spy sent to Earth years ago. Written by Stan Lee and illustrated with eerie precision by Steve Ditko—whose inks add depth to the story’s unsettling tone—this 1975 Marvel classic blends sci-fi intrigue with a personal revelation that redefines everything. The cover by Aubrey Bradford captures the alien’s unsettling gaze, perfectly framing the issue’s unsettling premise.

Contains 3 stories
The Martian Who Stole a City!
7 pp · Science Fiction
Bill GordonBobby Carter
The Screaming Beasts!
6 pp · Jungle
The Absent-Minded Professor!
5 pp · Science Fiction
Professor Blank

In "The Absent-Minded Professor!" from Crypt of Shadows #20 (1975), a college professor haunted by a persistent conviction that life exists beyond Earth finds himself suddenly whisked away by aliens—only to discover the unsettling truth behind his own certainty. As the alien captain reflects on a long-lost mission, the professor begins to piece together a shocking revelation about his own identity.

ComicBooks.com Value

Our Model is In Beta
Raw (Fine) $9
CGC 9.8 · 1 in census $303*
CGC 9.6 · 3 in census $90*
CGC 9.4 · 5 in census $52*
CGC 9.2 · 4 in census $37*
CGC 9.0 · 2 in census $30*
CGC 8.5 none in existence
Show all 10 grades
CGC 8.0 · 1 in census $30*
CGC 7.5 none in existence
CGC 7.0 none in existence
CGC 6.5 · 1 in census $30*
* 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 Stan Lee
artist, inker Steve Ditko
letterer Artie Simek
cover pencils, inks Aubrey Bradford

Reprints

↩ Reprints Men's Adventures #24 (1953), Tales of Suspense #29 (1962), Tales to Astonish #33 (1962)

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