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 #2424535
Price observations belong to this edition. Guide estimates, catalog references and completed sales are separate kinds of evidence.
| Grade | Amount | Evidence | Recorded |
|---|---|---|---|
| 4.0 | $30.81 | PANEL_PROFITS · grade_4_0_valueguide | 1961-02-01 |
| 9.2 | $2,515.20 | PANEL_PROFITS · grade_9_2_valueguide | 1961-02-01 |
| 9.6 | $2,767.00 | PANEL_PROFITS · grade_9_6_valueguide | 1961-02-01 |
| 9.8 | $164.33 | PANEL_PROFITS · grade_9_8_valueguide | 1961-02-01 |
| RAW | $19.86 | PANEL_PROFITS · ungraded_valueguide | 1961-02-01 |
| 10.0 | $3,270.00 | PANEL_PROFITS · grade_10_0_valueguide | 1961-02-01 |
| 6.0 | $74.23 | PANEL_PROFITS · grade_6_0_valueguide | 1961-02-01 |
| 8.0 | $368.30 | PANEL_PROFITS · grade_8_0_valueguide | 1961-02-01 |
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 22 graded copies for Challengers of the Unknown #18 (1961). Population is the number recorded by this grading source, not the total print run or all surviving copies.
The Menace of Mystery Island!
| StoryTitle2 = The Doomed World of Tomorrow!
Creative credits
Writers: Dave Wood, Arnold Drake
Interior art: Bob Brown, Bob Brown
Source records & attribution
Panel Profits keeps each source identity attached to its edition record.
COMICBASE: comicbase:224114
GCD: 16087
PANEL PROFITS: 2424535