Price history & market evidence
Price observations belong to this edition. Guide estimates, catalog references and completed sales are separate kinds of evidence.
| Grade | Amount | Evidence | Recorded |
|---|---|---|---|
| 10.0 | $3,498.00 | PANEL_PROFITS · grade_10_0_valueguide | 1957-10-01 |
| 4.0 | $26.73 | PANEL_PROFITS · grade_4_0_valueguide | 1957-10-01 |
| 6.0 | $67.55 | PANEL_PROFITS · grade_6_0_valueguide | 1957-10-01 |
| 8.0 | $158.67 | PANEL_PROFITS · grade_8_0_valueguide | 1957-10-01 |
| 9.2 | $1,800.00 | PANEL_PROFITS · grade_9_2_valueguide | 1957-10-01 |
| 9.6 | $2,959.00 | PANEL_PROFITS · grade_9_6_valueguide | 1957-10-01 |
| 9.8 | $2,690.44 | PANEL_PROFITS · grade_9_8_valueguide | 1957-10-01 |
| RAW | $12.57 | PANEL_PROFITS · ungraded_valueguide | 1957-10-01 |
| 8.5 | $230.00 | 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 16 graded copies for Mystery in Space #40 (1957). Population is the number recorded by this grading source, not the total print run or all surviving copies.
Riddle of the Runaway Earth
The story infers that aliens known as Starmen placed a Cosmic Engine on Easter Island during the Last Glacial Maximum, which keeps Earth as the third planet in the Sun System, rather than being the ninth.
| StoryTitle2 = Secret of the Star Warriors | Synopsis2 =
| StoryTitle3 = Space Cabby: "Interplanetary Speedway" | Synopsis3 =
| StoryTitle4 = Lifeboat in Space | Synopsis4 = | Appearing1 = **Featured Characters:** * Joel Cobb, archaeologist **Supporting Characters:** * Starmen **Other Characters:** * Mammoths * Primitive humans of indefinite race **Locations:** * Earth ** Easter Island ** Prehistoric Era **Items:** * Cosmic Engine * White dwarf
| Appearing2 = **Featured Characters:** * Andrew Fielding, actor **Supporting Characters:** * Ozmans ** Zizo ** Dmir **Antagonists:** * Rebels **Other Characters:** * Unnamed actor **Locations:** * Unnamed American city * Ozma **Items:** * Mento-teleportation machine * Hoop mines
| Appearing3 = **Featured Characters:** * Space Cabby) **Supporting Characters:** * Bret Bruce **Antagonists:** * Space-Bandits **Other Characters:** * Interplanetary Police **Locations:** * Pluto) **Items:** * **Vehicles:** * Space Cab * Bret's automatic spacemobile
| Appearing4 = **Featured Characters:** * Captain Daav **Supporting Characters:** * De-Milar * Bres * Litti **Antagonists:** * Arcturians * Uranians **Other Characters:** * Solar Patrol Base officer **Locations:** * Solar Patrol Base #1 * Venus) * Uranus) * Pluto) **Vehicles:** * Monarch of Mars (starship) * Battlewagon | Notes = | Trivia = | Recommended = | Links =
Creative credits
Writers: Otto Binder, John Broome, Otto Binder, John Broome
Interior art: Sid Greene, Frank Giacoia, Gil Kane, Carmine Infantino
Source records & attribution
Panel Profits keeps each source identity attached to its edition record.
COMICBASE: comicbase:777760
GCD: 13833
PANEL PROFITS: 2413847