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 #2424592
Price observations belong to this edition. Guide estimates, catalog references and completed sales are separate kinds of evidence.
| Grade | Amount | Evidence | Recorded |
|---|---|---|---|
| 10.0 | $10,817.00 | PANEL_PROFITS · grade_10_0_valueguide | 1959-04-01 |
| 4.0 | $84.50 | PANEL_PROFITS · grade_4_0_valueguide | 1959-04-01 |
| 6.0 | $186.00 | PANEL_PROFITS · grade_6_0_valueguide | 1959-04-01 |
| 8.0 | $1,157.27 | PANEL_PROFITS · grade_8_0_valueguide | 1959-04-01 |
| 9.2 | $8,320.68 | PANEL_PROFITS · grade_9_2_valueguide | 1959-04-01 |
| 9.6 | $9,153.00 | PANEL_PROFITS · grade_9_6_valueguide | 1959-04-01 |
| 9.8 | $494.50 | PANEL_PROFITS · grade_9_8_valueguide | 1959-04-01 |
| RAW | $38.00 | PANEL_PROFITS · ungraded_valueguide | 1959-04-01 |
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 0 catalog references. These are reference values, not guaranteed sale proceeds.
Graded population
CGC records 48 graded copies for Challengers of the Unknown #7 (1959). Population is the number recorded by this grading source, not the total print run or all surviving copies.
The Beasts From Planet 9
An explorer calls on the Challengers) to help him subdue three alien creatures: a giant armadillo-like creature, a giant jelly-fish, and a giant fire-breathing bird. Using their various skills and tools at their disposal, the Challengers manage to capture each one. After all three creatures are captured, aliens from Pluto) arrive, and apologize for the creatures being set loose on Earth, and thank the Challengers for recapturing the monsters for them, before leaving Earth.
| StoryTitle2 = The Isle of No Return | Synopsis2 = When the criminal scientist Anton Zammer uses inventions stolen from the late Professor Macon to commit crimes, the Challengers try to stop him, but are shrunk down to miniature size when they land near his base. Zammer stampedes the Challengers) and keeps June Robbins as a prisoner, but the Challengers soon manage to return to their own size and stop Zammer, and deactivate Macon's devices by using Macon's greatest, and final invention. This last device activates and disables all the other Macon tech, after which Zammer is easily caught and arrested.
| Appearing1 = **Featured Characters:** * Challengers of the Unknown) ** Walter "Prof" Haley) ** Lester "Rocky" Davis) ** Matthew "Red" Ryan) ** Kyle "Ace" Morgan) **Supporting Characters:** * **Antagonists:** * **Other Characters:** * **Locations:** * Pluto (planet)) **Items:** * **Animals:** * Plutonian giant armadillo like creature * Plutonian giant jelly-fish * Plutonian giant fire-breathing bird
| Appearing2 = **Featured Characters:** * Challengers of the Unknown) ** Walter "Prof" Haley) ** Lester "Rocky" Davis) ** Matthew "Red" Ryan) ** Kyle "Ace" Morgan) **Supporting Characters:** * June Robbins) **Antagonists:** * Anton Zammer * Nero (Zammer's parrot) **Other Characters:** * Professor Macon dead **Locations:** * **Items:** * Macon's Intangibility Technology * Macon's Size Alteration Technology **Vehicles:** *
| StoryTitle3 = I'd Better Hurry
| Notes = * This issue is reprinted in Challengers of the Unknown Archives Vol. 2 (Collected). | Trivia = | Recommended = | Links =
Creative credits
Writers: Ed Herron, Jack Kirby, Ed Herron, Jack Kirby, Henry Boltinoff
Interior art: Jack Kirby, Jack Kirby, Henry Boltinoff
Source records & attribution
Panel Profits keeps each source identity attached to its edition record.
COMICBASE: comicbase:224103
GCD: 14960
PANEL PROFITS: 2424592