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Jumbo Comics #20 cover
Cover: John Celardo
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Jumbo Comics #20

Oct 1940 · Fiction House · 0.10 USD
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In "Spoilers of the Wild," Sheena and Bob venture beyond the Grandanga mountains into uncharted territory, where they encounter a tribe of gorillas led by a mysterious white woman named Keela—capable of defeating them in combat. As Keela learns English and grows close to Bob, Sheena's jealousy flares, leading to a tense confrontation between the two women. The issue ends with Keela falling into an active volcano, forcing Sheena and Bob to flee as the mountain erupts. Art by Bob Powell and cover by John Celardo bring this jungle adventure to life in a 1940 comic priced at 10 cents.

Contains 10 stories
Spoilers of the Wild
10 pp · Jungle
SheenaBob ReynoldsKeelaRogo (an ape)

In "Spoilers of the Wild," Sheena and Bob venture beyond the Grandanga mountains into uncharted jungle territory, where they encounter a tribe of gorillas led by a mysterious white woman named Keela—remarkable not only for her command of the apes but for her surprising skill in combat. As Keela learns English and grows close to Bob, her presence stirs tension with Sheena, whose feelings are complicated by jealousy and the growing danger of the wild. When the two women face off in a fierce hand-to-hand clash, the outcome is sealed by nature itself—Keela plunging into an active volcano as the jungle erupts around them. Sheena and Bob barely escape, fleeing back toward their own world.

Untitled Adventure story
3 pp · Adventure, Anthropomorphic-Funny Animals, Science Fiction
Script ? [as Golleh]
Peter PuppTinymiteBuddah [a genie]

In the 1940 Jumbo Comics #20, Peter and Tinymite’s rocket crash-lands on the Moon, leading them through a cavernous alien ruin where a colossal dragon looms before a guarded door. With a flick of his magic ring, Peter summons the genie Buddah to fend off a giant warrior, only to find the next chamber holds a trapped old man and a deadly descending array of knives. As a shadowy figure steps forward, their fate hangs in the balance.

Pirate Island
8 pp · Adventure, Historical
Script ? [as Willis Rensie]
The HawkPasha AhibSaritaCalebJeremySagua

In "Pirate Island," the retired sea captain known as the Hawk, now tiring of farm life, answers a call to action when coastal towns are terrorized by a mysterious pirate crew. With his loyal companion Sagua, he tracks the raiders to their island stronghold, only to discover the notorious pirates are a band of women—leading to a confrontation that tests the Hawk’s resolve and courage.

Untitled Superhero story
8 pp · Superhero
Script ? [as Teller Tayles]
Lightning [Fred Larkin]Dr. TolRoganSlug
Untitled Science Fiction story
8 pp · Science Fiction
Script ? [as Curt Davis]
Stuart TaylorLauraGegin (villain, introduction, death), Limpy (introduction)
Untitled Humor story
1 pp · Humor, Children
BobbyMr. De FlickerSmudge (a street urchin)
Untitled Spy story
8 pp · Spy
Script ? [as Major Thorpe]
ZX-5The Baron (villain)
Untitled Humor story
1 pp · Humor
Uncle Otto
Untitled Western-Frontier story
8 pp · Western-Frontier
Script ? [as Fred Sande]
Wiley WiltonSheriff ParkerBobby JonesMrs. JonesCrazy Mike
The Case of the Crooked Dagger
7 pp · Detective-Mystery
Script ? [as George Thatcher]
Inspector DaytonMiss BeltonDoc Black

Inspector Dayton investigates the brutal murder of Miss Belton, strangled with piano wire, only to be attacked himself by a mysterious red-eyed killer wielding a twisted dagger at a local music shop. As the masked murderer continues a reign of terror across the city—striking down victims from all walks of life—Dayton pursues his only lead: the crooked blade itself, which leads him to an unexpected confrontation on the docks and a shocking discovery at a physician's office. With the killer's identity finally revealed and his motivations laid bare, Dayton faces off against his quarry in a tense final reckoning.

ComicBooks.com Value

Our Model is In Beta
Raw (Good) $157
CGC 9.2 · 3 in census $3,040
CGC 9.0 $2,152
CGC 8.5 none in existence
CGC 8.0 $1,266
CGC 7.5 · 1 in census $1,009
CGC 7.0 · 1 in census $782*
Show all 15 grades
CGC 6.5 · 1 in census $734*
CGC 6.0 · 2 in census $734
CGC 5.5 none in existence
CGC 5.0 · 3 in census $414
CGC 4.5 none in existence
CGC 4.0 · 1 in census $387
CGC 3.5 · 2 in census $300*
CGC 3.0 · 2 in census $265*
CGC 2.5 · 1 in census $215*
* estimate — limited direct-sales data at this grade
Our model’s value — refined as new sales data arrives · CGC census counts shown where available

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Full credits

artist, inker Bob Powell
cover pencils, inks John Celardo

Reprints

↩ Reprints Jumbo Comics #3 (1938), Jumbo Comics #4 (1938)

Reprinted in Jerry Iger's Classic Jumbo Comics #1 (1985), Gwandanaland Comics #910 (2017)

Key issues in Jumbo Comics

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