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Chamber of Darkness #3 cover
Cover: John Buscema & John Verpoorten

Chamber of Darkness #3

Feb 1970 · Marvel · 0.15 USD
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In "The Warlock Tree!", George Ashton stumbles into a sinister trap when a mysterious woman convinces him to open a forbidden box—only to reveal herself as Pandora, unleashing forces he never meant to awaken. Written by Roy Thomas and brought to life with bold, atmospheric art by John Buscema and John Verpoorten, this 1970 Marvel classic blends myth and menace in a chilling tale of unintended consequences. The cover by Buscema and Verpoorten captures the story’s eerie tension perfectly.

Contains 3 stories
The Warlock Tree!
7 pp · Horror-Suspense
The Tell Tale Heart
7 pp · Crime
Headstone P. Gravely (host)
Something Lurks on Shadow Mountain!
7 pp · Horror-Suspense
Digger (host)

In "Something Lurks on Shadow Mountain!" from Chamber of Darkness #3 (1970), George Ashton finds himself ensnared in a terrifying game when a mysterious woman convinces him to open a forbidden box—only to reveal she is Pandora herself, and the consequences of his actions are already unfolding. The story unfolds with a chilling sense of dread as George grapples with the weight of his choices, trapped between myth and nightmare.

ComicBooks.com Value

Our Model is In Beta
Raw (Fine) $11
CGC 9.8 · 5 in census $603
CGC 9.6 · 12 in census $197
CGC 9.4 · 13 in census $107
CGC 9.2 · 10 in census $78
CGC 9.0 · 15 in census $64
CGC 8.5 · 9 in census $53
Show all 16 grades
CGC 8.0 · 4 in census $49
CGC 7.5 · 3 in census $41
CGC 7.0 · 3 in census $37
CGC 6.5 · 2 in census $36
CGC 6.0 · 2 in census $30
CGC 5.5 · 3 in census $21
CGC 5.0 none in existence
CGC 4.5 none in existence
CGC 4.0 none in existence
CGC 3.5 · 2 in census $20
Our model’s value — refined as new sales data arrives · CGC census counts shown where available

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Full credits

writer Roy Thomas
letterer Sam Rosen
colorist Marie Severin
cover pencils John Buscema
cover inks John Verpoorten

Reprints

Reprinted in Atomos #11 (1971), Helgenen #1/1974 (1974), Fantastic Four #38 (1974), Capitaine America #36 (1974), L'incroyable Hulk #37 (1974), Giant-Size Chillers #3 (1975), Tomb of Darkness #18 (1976), Marvel Creator Collection #1 (2025), El Enterrador #7

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