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The Adventures of Rex the Wonder Dog #37 cover
Cover: Gil Kane

The Adventures of Rex the Wonder Dog #37

Jan 1958 · DC · 0.10 USD
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In "Rex of the Fighting Seventh! Cavalry!", DC's beloved canine hero teams up with old friend Dr. Kirby to recover a lost government satellite hidden in the Pacific. With a special diving rig and quick thinking, Rex navigates underwater dangers, outwits greedy thieves, and helps a native village that's come to revere the satellite as a lucky talisman. Written by John Broome and brought to life with dynamic art by Gil Kane—both interior and cover—this 1958 adventure blends action, humor, and heart in a story that's as thrilling as it is charming.

Contains 5 stories
Rex of the Fighting Seventh! Cavalry!
10 pp · Adventure, Animal
Major DennisDanny DennisColonel BlitzPecosMayor Smith

In the dusty heat of Prairieville’s Wild West Days, Major Dennis, his son Danny, and their loyal dog Rex reenact their famous capture of the Pecos Gang—only to find the past stirring up trouble. Colonel Blitz, a long-buried enemy, has set a trap using a fake Pecos and a stolen Golden Sioux statue, orchestrating a staged robbery and a cavalry ambush in the desert. With quick thinking, Rex’s sharp instincts, and a fearless charge through danger, the trio must outwit deception and save the day—before the frontier turns deadly.

Curious Mammals!
1 pp · Non-Fiction, Animal
The Treasure of Thunder Island!
6 pp · Animal, Detective-Mystery
Detective Chimp [Bobo]Fred Thorpe

In "The Treasure of Thunder Island!", Detective Chimp [Bobo] swaps his usual case files for a whimsical vacation plan, donning a ridiculous professor disguise to follow a lead on Spanish treasure in Thunder Bay. When a tree nap leads to an unexpected gold-filled chest, Bobo must outwit crooks who snatch it—using a well-timed rock to sink their getaway boat. After a reward and a paid vacation, he’s still not ready to leave the quiet Sheriff’s office, where nothing ever happens.

Untitled Non-Fiction story
2 pp · Non-Fiction, Animal
Mystery of the Undersea Satellite!
8 pp · Adventure, Animal
Dr. KirbyDanny Dennis (cameo)

ComicBooks.com Value

Our Model is In Beta
Raw (VG) $31
CGC 9.0 · 1 in census $1,263*
CGC 8.5 none in existence
CGC 8.0 none in existence
CGC 7.5 · 1 in census $529*
CGC 7.0 none in existence
CGC 6.5 none in existence
Show all 11 grades
CGC 6.0 none in existence
CGC 5.5 none in existence
CGC 5.0 · 1 in census $260*
CGC 4.5 none in existence
CGC 4.0 · 1 in census $205*
* 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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Cast · 1 character

Full credits

artist Gil Kane
cover pencils, inks Gil Kane

Reprints

↩ Reprints The Adventures of Rex the Wonder Dog #3 (1952)

Reprinted in Big Boy #25 (1958), Big Boy #26 (1958), Big Boy #27 (1958), Ardan #7 (1973), Tarzan #220 (1973)

Key issues in The Adventures of Rex the Wonder Dog

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