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Challengers of the Unknown #41 cover
Cover: Bob Brown

Challengers of the Unknown #41

Dec 1964 · DC · 0.12 USD
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In "The Challenger Who Quit!", the Challengers of the Unknown investigate a sudden, inexplicable castle that appears and vanishes after a blast—leaving behind only a mysterious headache for Rocky. When he announces he’s quitting the team, the remaining members face a bizarre encounter with the Quadruple Man before uncovering a hidden castle and a helmet capable of turning thoughts into reality. Written by Ed Herron and illustrated by Bob Brown, with lettering by Stan Starkman, this 1964 DC adventure blends mystery and the supernatural, all wrapped in a cover by Bob Brown.

Contains 4 stories
The Challenger Who Quit!
16.33 pp · Adventure, Superhero
Challengers of the Unknown [Ace MorganRocky DavisProf HaleyRed Ryan]Dr. BurkeDr. HanfordThe Quadruple Man (villain)Fear (villain)

In "The Challenger Who Quit!", the Challengers of the Unknown investigate a sudden, inexplicable castle that appears and vanishes after a blast from their own bomb. When Rocky claims he's quitting the team due to worsening headaches, the remaining members uncover a shocking link between the explosion and a hidden helmet capable of turning thought into reality—forcing them to confront a manifestation born from fear, all while grappling with the mystery of Rocky’s injury.

The Hand of Clay!
0.5 pp · Non-Fiction
Untitled Humor story
0.67 pp · Humor, Children
2 Hours to Die!
7.67 pp · Adventure, Superhero
Challengers of the Unknown [Ace MorganRocky DavisProf HaleyRed Ryan]

In "2 Hours to Die!", the Challengers of the Unknown face a deadly race against time when a seaquake traps Professor and his submarine. With a bomb set to detonate in two hours and no way to escape, the team must think fast as each attempt to free the sub ends in disaster.

ComicBooks.com Value

Our Model is In Beta
Raw (VG) $9
CGC 9.8 · 1 in census $1,352*
CGC 9.6 · 4 in census $384
CGC 9.4 · 2 in census $216
CGC 9.2 · 3 in census $161
CGC 9.0 · 2 in census $85*
CGC 8.5 · 2 in census $58*
Show all 10 grades
CGC 8.0 · 3 in census $46
CGC 7.5 · 2 in census $36*
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 Ed Herron
artist, inker Bob Brown
letterer Stan Starkman
cover pencils, inks Bob Brown

Reprints

↩ Reprints House of Mystery #33 (1954)

Reprinted in Spectre #1 (1967), Challengers of the Unknown #60 (1968), Eclipso #3 (1968), Titanes Planetarios #213

Key issues in Challengers of the Unknown

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