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Creatures on the Loose #15 cover
Cover: Gil Kane & Joe Sinnott

Creatures on the Loose #15

Jan 1972 · Marvel · 0.20 USD
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In "Spragg Conqueror of the Human Race!", Stan Lee and Larry Lieber team up with Jack Kirby to deliver a classic sci-fi horror tale from 1972, where a desperate alien outcast named Spragg emerges from the shadows of Transylvania to enslave villagers and build a device to amplify his power. With Kirby’s dynamic art and Dick Ayers’ sharp inks, the story unfolds as a lone scientist races to stop Spragg before he becomes unstoppable—only to send him hurtling into the void. The cover by Gil Kane and Joe Sinnott captures the menace and mystery of this alien threat.

Contains 3 stories
Spragg Conqueror of the Human Race!
13 pp · Horror-Suspense
Spragg (introduction, origin)Prof. Bob Robertson (introduction, last name not given)

In "Spragg Conqueror of the Human Race!", an outcast alien named Spragg is thrust onto Earth’s surface in Transylvania, where he enslaves the local villagers to construct a device that amplifies his already formidable powers. A visiting scientist, unraveling the threat, devises a way to stop him—leading to a final, desperate act that sends Spragg hurtling into the void.

Where Lurks the Ghost!
5 pp · Horror-Suspense
JoeMike

In "Where Lurks the Ghost!", a man spends a restless night in a haunted house alongside its caretaker—only to realize too late that the caretaker has been dead for years. The story unfolds with quiet dread, as the line between the living and the unseen blurs in the dark.

Help!!
5 pp · Fantasy

When a writer picks up a secondhand typewriter that endlessly types the same desperate plea—"Help!!"—along with a single address, he can't ignore the call. Driven by curiosity and unease, he follows the note to a remote location, only to discover the typewriter's former owner caught in a perilous accident.

ComicBooks.com Value

Our Model is In Beta
Raw (Fine) $12
CGC 9.8 · 2 in census $380*
CGC 9.6 · 4 in census $113
CGC 9.4 · 6 in census $65*
CGC 9.2 · 2 in census $46*
CGC 9.0 · 1 in census $41*
CGC 8.5 · 1 in census $41
Show all 10 grades
CGC 8.0 none in existence
CGC 7.5 none in existence
CGC 7.0 none in existence
CGC 6.5 · 1 in census $20*
* 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 Jack Kirby
letterer Artie Simek
cover pencils Gil Kane
cover inks Joe Sinnott

Reprints

↩ Reprints Journey into Mystery #68 (1961), Tales to Astonish #22 (1961), Tales to Astonish #25 (1961)

Reprinted in Hit Comics Devil-Man #213 (1971), Capitaine America #41 (1975)

Key issues in Creatures on the Loose

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