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The Adventures of Rex the Wonder Dog #40 cover
Cover: Gil Kane

The Adventures of Rex the Wonder Dog #40

Jul 1958 · DC · 0.10 USD
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In "The Hero of Wild Horse Mesa!", Rex the Wonder Dog ventures to a western sheep ranch with his young friend Danny, where he teams up with a scrappy sheep dog named Nick to help a timid lamb face its fears. Written by Robert Kanigher and brought to life with dynamic art by Gil Kane—both inks and cover—this 1958 adventure captures the heart of classic DC storytelling, with Gaspar Saladino’s crisp lettering adding to the timeless charm.

Contains 3 stories
The Hero of Wild Horse Mesa!
10 pp · Adventure, Animal

In "The Hero of Wild Horse Mesa!" from The Adventures of Rex the Wonder Dog #40 (1958), Rex teams up with Nick, a spirited sheep dog, on a rugged western ranch where a young lamb learns courage isn't about size or strength—but heart. Amid dusty trails and open plains, the unlikely duo faces challenges that test what it truly means to be a hero.

Bobo the Baby Sitter!
6 pp · Animal, Detective-Mystery
The Daredevils' Outpost!
8 pp · Adventure, Animal

ComicBooks.com Value

Our Model is In Beta
CGC 8.0 · 2 in census $804
CGC 7.5 · 1 in census $673
CGC 7.0 none in existence
CGC 6.5 · 2 in census $449*
CGC 6.0 none in existence
CGC 5.5 · 1 in census $314*
Show all 12 grades
CGC 5.0 none in existence
CGC 4.5 none in existence
CGC 4.0 none in existence
CGC 3.5 none in existence
CGC 3.0 none in existence
CGC 2.5 · 1 in census $139*
* 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 Gil Kane
cover pencils, inks Gil Kane

Reprints

↩ Reprints The Adventures of Rex the Wonder Dog #1 (1952), The Adventures of Rex the Wonder Dog #9 (1953)

Reprinted in Century, The 100 Page Comic Monthly #32 (1959), Century, The 100 Page Comic Monthly #33 (1959), Ray Halcotan #38 (1963), Atome Kid #14 (1974)

Key issues in The Adventures of Rex the Wonder Dog

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