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Challengers of the Unknown #9 cover
Cover: Bob Brown

Challengers of the Unknown #9

Aug 1959 · DC · 0.10 USD
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In "The Men Who Lost Their Memories!", the Challengers of the Unknown race against a bizarre alien scheme that turns Earth’s natural forces into weapons—mole-creatures, sea monsters, and sky-trapping flyers all working in tandem to dismantle the planet. Written by Ed Herron and illustrated by Bob Brown, with inks by Wally Wood and Bob Brown, the story unfolds with eerie precision as the team confronts the impossible, only to outwit the invaders with a clever ruse. The cover, also by Bob Brown, captures the surreal menace of the threat.

Contains 3 stories
The Men Who Lost Their Memories!
9.67 pp · Adventure
Challengers of the Unknown [Ace MorganRocky DavisProfessor HaleyRed Ryan]June RobbinsMartin FerndaleHigginsDekkar and his gang

In "The Men Who Lost Their Memories!", June Robbins takes charge when the Challengers' minds are stolen by the villain Dekkar. With her friends blank slates, she pushes them to remember their past feats—climbing, diving, and daring escapes—rekindling their courage. As they infiltrate the villain’s castle, June races to reverse the machine’s power and reclaim what was lost.

Untitled Humor story
0.67 pp · Humor
Shorty
The Plot to Destroy Earth!
13.67 pp · Adventure
three alien creaturesthree robots

In "The Plot to Destroy Earth!", the Challengers of the Unknown race against time to stop a bizarre alien scheme: a mole-creature, a sea monster, and a flying beast are each tasked with dismantling Earth, while a robotic ship harvests pie-shaped chunks. With the planet under siege and their usual tactics failing, the team devises a clever ruse using giant balloons to mimic the creatures' demise—tricking the robots into abandoning their mission.

ComicBooks.com Value

Our Model is In Beta
Raw (VG) $27
CGC 9.2 · 1 in census $439*
CGC 9.0 · 2 in census $299*
CGC 8.5 · 2 in census $204*
CGC 8.0 · 4 in census $157
CGC 7.5 · 2 in census $146
CGC 7.0 · 6 in census $105*
Show all 15 grades
CGC 6.5 · 1 in census $88*
CGC 6.0 · 3 in census $78*
CGC 5.5 · 1 in census $61*
CGC 5.0 · 1 in census $61*
CGC 4.5 none in existence
CGC 4.0 · 2 in census $48*
CGC 3.5 · 1 in census $40*
CGC 3.0 none in existence
CGC 2.5 · 1 in census $27*
* 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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Raw — VG $27.78–$99.99 5 listings
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Raw / ungraded $3.49–$75 7 listings
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Cast · 5 characters

Full credits

writer Ed Herron
artist, inker Bob Brown
letterer Joe Letterese
cover pencils, inks Bob Brown

Reprints

↩ Reprints Strange Adventures #27 (1952)

Reprinted in The Hundred Comic Monthly #39 (1959), Challengers of the Unknown #3 (1960), Big Boss #64 (1961), Big Boss #34 (1977), Showcase Presents Challengers of the Unknown #1 (2006), Titanes Planetarios #105

Key issues in Challengers of the Unknown

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