Price history & market evidence
PriceCharting guide history
Dated guide estimates for this edition, separate from completed sales.
1 dated observation—one point does not establish a trend. Last recorded 2026-10-06. Source record #2424551
Price observations belong to this edition. Guide estimates, catalog references and completed sales are separate kinds of evidence.
| Grade | Amount | Evidence | Recorded |
|---|---|---|---|
| 4.0 | $14.85 | PANEL_PROFITS · grade_4_0_valueguide | 1963-06-01 |
| 6.0 | $37.43 | PANEL_PROFITS · grade_6_0_valueguide | 1963-06-01 |
| 8.0 | $299.99 | PANEL_PROFITS · grade_8_0_valueguide | 1963-06-01 |
| 9.2 | $1,057.18 | PANEL_PROFITS · grade_9_2_valueguide | 1963-06-01 |
| 9.6 | $1,163.00 | PANEL_PROFITS · grade_9_6_valueguide | 1963-06-01 |
| 9.8 | $135.00 | PANEL_PROFITS · grade_9_8_valueguide | 1963-06-01 |
| RAW | $8.00 | PANEL_PROFITS · ungraded_valueguide | 1963-06-01 |
| 10.0 | $1,374.00 | PANEL_PROFITS · grade_10_0_valueguide | 1963-06-01 |
| 9.6 | $45.00 | ComicBase · catalog referencecatalog | Date not recorded |
Reading this edition’s market
Compare the same cover, printing and grade before setting a bid. A raw guide or a higher-grade price does not establish a slab’s value. Include selling fees, shipping and the depth of completed-sale evidence when assessing an exit price.
The table includes 8 guide observations and 1 catalog references. These are reference values, not guaranteed sale proceeds.
Graded population
CGC records 14 graded copies for Challengers of the Unknown #32 (1963). Population is the number recorded by this grading source, not the total print run or all surviving copies.
One Challenger Must Die!
The Volcano Men are appearing on an island, multiplying by splitting, growing large by merging. The Challengers can't agree on an attack. Ace wants to use LOX, Professor Haley CO2 foam. The team splits to pursue their own methods, but both sides fear "one Challenger might die". Separate attacks fail, and the boys stop Rocky from making a suicidal rush. Finally they work together. Ace Morgan's LOX cools the Professor, who wields super-CO2. Smothered, the Volcano Man crumbles to ash. The Challengers agree to work together from now on.
| StoryTitle2 = Cosmo Turns Traitor | Synopsis2 = The Challengers of the Unknown track Mastermind and his gang with Cosmo)'s alien senses. But Mastermind's car morphs into a rocket-car and blasts off. An alien, D'Jann, saved their lives with a 'substance converter'. D'Jann seeks his lost pet J'Suna (Cosmo). Mastermind convinces D'Jann the Challengers are criminals. D'Jann sends a giant arrow and giant marbles at the Challengers. Our heroes find Cosmo is oddly distracted. He sniffs his former master just ahead! Mastermind substance-converts the Challengers. Rocky becomes a flame-man, Professor Walter Haley a cloud-man, Red a wind-man, and Ace a two-dimensional man. They're locked in a cell, but work together to fan Rocky's flame and melt the bars. The Challengers flatten Mastermind's gang. Cosmo gets clunked by a falling beam. D'Jann feigns outrage, grabs back the substance converter, and stops the criminals. Cosmo told him the truth! D'Jann decides Cosmo's powers are needed here on Earth, so presents him to the Challengers, then leaves in his rocket ship.
| Appearing1 = **Featured Characters:** * Challengers of the Unknown) ** Ace Morgan) ** Rocky Davis) ** Prof. Haley) ** Red Ryan) **Supporting Characters:** * **Antagonists:** * Volcano Men **Other Characters:** * **Locations:** * Colorado ** Challengers Mountain * Malina Island **Items:** * None **Vehicles:** * Challengers' Plane
Creative credits
Writers: Arnold Drake, Ed Herron
Interior art: Bob Brown, Bob Brown
Source records & attribution
Panel Profits keeps each source identity attached to its edition record.
COMICBASE: comicbase:224128
GCD: 17696
PANEL PROFITS: 2424551