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 #2424543
Price observations belong to this edition. Guide estimates, catalog references and completed sales are separate kinds of evidence.
| Grade | Amount | Evidence | Recorded |
|---|---|---|---|
| 10.0 | $2,403.00 | PANEL_PROFITS · grade_10_0_valueguide | 1962-04-01 |
| 4.0 | $56.25 | PANEL_PROFITS · grade_4_0_valueguide | 1962-04-01 |
| 6.0 | $58.82 | PANEL_PROFITS · grade_6_0_valueguide | 1962-04-01 |
| 9.2 | $1,848.76 | PANEL_PROFITS · grade_9_2_valueguide | 1962-04-01 |
| 9.6 | $2,034.00 | PANEL_PROFITS · grade_9_6_valueguide | 1962-04-01 |
| 9.8 | $228.00 | PANEL_PROFITS · grade_9_8_valueguide | 1962-04-01 |
| RAW | $12.93 | PANEL_PROFITS · ungraded_valueguide | 1962-04-01 |
| 8.0 | $278.65 | PANEL_PROFITS · grade_8_0_valueguide | 1962-04-01 |
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 11 graded copies for Challengers of the Unknown #25 (1962). Population is the number recorded by this grading source, not the total print run or all surviving copies.
Return of the Invincible Pharaoh
Whilst the Challengers are performing at a charity aerial show, a man steals the box-office receipts. Bullets bounce off him and he is unhurt when Ace's plane hits him and escapes in the confusion. Prof remembers a news story about Professor Lundquist, the Egyptologist, being robber by his assistant, Torbert, of a flask containing the immortality fluid of Pharoah Tut Aba. Tut Aba was of common birth, with magical powers, who became Pharoah and ruled with his queen, Lasandra, until she became deathly ill. Tut Aba prepared a fluid to save her, but a servant stumbled upsetting the bowl of chemicals into the fireplace and the resulting explosion killed Tut Aba and his queen also died. Torbert has fled to Egypt to find a supply of the immortality fluid in a newly excavated tomb. His man, Sladen, opens the mummy's coffin and Tut Aba steps out and threatens them. The Challengers arrive and Torbert tells Tut Aba they are the ones who looted his tomb. The mummy attacks, but stops when the coffin of Lasandra is endangered. He proceeds to a nearby city and begins smashing into jewelry stores and antique shops, until he stops at poster for a movie about him and his queen. The gang have overpowered Red and Torbert takes them to the city. Sladen leads Tut Aba into and electrical trap and Torbert demands the immortality fluid. Meanwhile, in the nearby Egyptology museum, the Challengers find the item the mummy has been searching for. They reach Tut Aba as he attacks the gang, but are able to blind him with flashlights until Prof can tell him they have the locket containing portraits of him and his queen. Tut Aba returns to him tomb as the immortality liquid wears off.
| StoryTitle2 = Captives of the Alien Hunter | Synopsis2 =
| Appearing1 = **Featured Characters:** * Challengers of the Unknown) ** Prof Haley) ** Rocky Davis) ** Red Ryan) ** Ace Morgan) **Antagonists:** * Torbert ** his gang *** Sladen **Other Characters:** * Pharaoh Tut Aba **Locations:** * **Items:** * ancient Egyptian magical formula **Vehicles:** *
| Appearing2 = **Featured Characters:** * Challengers of the Unknown) ** Prof Haley) ** Rocky Davis) ** Red Ryan) ** Ace Morgan) **Supporting Characters:** *Cosmo) * June Robbins) **Antagonists:** * Kubagy **Other Characters:** * **Locations:** * **Items:** * Kubagy's robot **Vehicles:** *
| Notes = | Trivia = | Recommended = | Links =
Creative credits
Writers: Arnold Drake, Arnold Drake
Interior art: Bob Brown, Bob Brown
Source records & attribution
Panel Profits keeps each source identity attached to its edition record.
COMICBASE: comicbase:224121
GCD: 16858
PANEL PROFITS: 2424543