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Masters of the Universe/Teenage Mutant Ninja Turtles: Turtles of Grayskull

Part of Masters of the Universe/TMNT Crossover

Author Tim Seeley

Illustrated by Freddie E. Williams II, Andrew Dalhouse, AndWorld Design

Paperback

$19.99 US

Dark Horse Comics | Dark Horse Books

6-5/8"W x 10-3/16"H (16.8 x 25.9 cm) | 13 oz (369 g) | 24 per carton

On sale Jun 17, 2025 | 112 Pages | 9781506744827

Sales rights: World

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Graphic Novels & Manga > Comics

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Buckle up for the team-up of a lifetime with The Masters of the Universe/Teenage Mutant Ninja Turtles: Turtles of Grayskull!

When the Teenage Mutant Ninja Turtles came across Krang and Shredder making a deal with some otherworldly ‘demon-mage’ named Skeletor, things got hella-weird and they ended up in ETERNIA! It turns out, when you mix Utrom mutagen with demon magic you get a nasty purple poison—and it’s brought Eternia to the brink of chaos. So, Leonardo, Raphael, Donatello, and Michelangelo are teaming up with The Masters of the Universe to kick some blue boney butt. The only problem is…He-Man is missing in action.

In this thrilling adventure, the Ninja Turtles and He-Man will find themselves pulled together across timelines and cosmos, again and again. A stolen time-scepter causing knots in the universe will cause irreparable damage to all existence unless the Ninja Turtles and He-Man—with the help of apprentice Timestress Renet Tilley—can find and defeat the mysterious force behind all this mayhem.

New York Times bestselling author Tim Seeley and Eisner-Award winning illustrator Freddie E. Williams II join forces to bring fans this awesome and long-awaited crossover.

Collects Masters of the Universe/Teenage Mutant Ninja Turtles: Turtles of Grayskull #1–#4.

Tim Seeley is one of those “slash” people…a writer-slash-artist. He has drawn a number of different comic book series including G.I JOE, HALLOWEEN, WILDCATS and EXSANGUINE. His writing work includes NY TIMES bestselling HACK/SLASH, NIGHTWING, BATMAN ETERNAL, MONEY SHOT and the critically acclaimed REVIVAL. He has also done consultation work for Cacao Barry, artist Hebru Brantley and Dreamworks Animation, and is an adjunct professor at Columbia College Chicago. He resides in Chicago, Illinois with his wife and daughter, and works at home where he is never far from his 80s action figure collection.

Freddie E. Williams II burst onto the comic book scene in 2005, when he began work with DC Comics on the Eisner Award winning series Seven Soldiers: Mister Miracle. Since then, he has illustrated a long list of DC Comics titles, including: Robin, The Flash, Countdown, 52, Blue Beetle, Aquaman, JSA All-Stars, Captain Atom, Green Arrow, The Movement, and Infinite Crisis. While the bulk of his work has been with DC Comics, Freddie has illustrated Brain Boy and Conan for Dark Horse Comics, as well as the Legendary Star Lord for Marvel Comics. Freddie is also artist and author of The DC Comics Guide to Digitally Drawing Comics.

Tim Seeley View titles by Tim Seeley

Freddie E. Williams II View titles by Freddie E. Williams II

Andrew Dalhouse View titles by Andrew Dalhouse

AndWorld Design View titles by AndWorld Design

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