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Carole Marsh Mystery Series

Wildlife Mysteries

“Real kid” characters follow clues and use STEM skills (science, technology, engineering, and math) to solve mysteries in these wild adventures filled with high-tech gear, humor, and exciting thrills and chills. Each mystery also includes a section with extra details on the science, technology, math, and problem-solving skills featured in the story, plus an extensive glossary, fascinating animal facts, and more!


Click a book name below or scroll down the page to view them all.

Fun Stuff

Download and print our free activities!

Each book also has an Online Book Club, Fact or Fiction Quiz, and more.

Just click the Learn More button below each book.


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The Mystery in Alligator Alley

Avery and Evan visit the Savannah National Wildlife Refuge—home to HUMONGOUS ALLIGATORS!—”stacked like cordwood!” When the kids overhear rumors of “gator poaching,” they are determined to help find the culprits. “We gotta protect wildlife!” Clues set in motion a wild adventure filled with science, high-tech gear, and fun! “This is a mystery you can really sink your TEETH into!”


The Mystery at Shark Reef

A new shark species has been discovered off the South Carolina coast! Avery and Evan beg to “see real sharks!”—maybe even discover a megalodon (giant prehistoric shark!) tooth. But something’s wrong at the shark reef and the mystery needs to be solved “BEFORE SOMEONE GETS HURT BAD!” “We gotta save the sharks!”


The Mystery at Grizzly Graveyard

You are purchasing the Paperback format of this book.The Mystery at Grizzly Graveyard is the winner of the Moonbeam Children’s Book Award – the 2015 Silver Medal Winner – Pre-teen Fiction Mystery. When Avery, Ella, and Evan visit Yellowstone National Park, they just assume grizzlies are big bad bears. However, after a trip to a center that rescues orphaned grizzly cubs, where they learn how humans don’t always play fair with wildlife, they begin to see a different side of the story. 


The Mystery at Rattlesnake Ridge

You are purchasing the Paperback format of this book. Avery, Ella, and Evan love wildlife...but some wildlife is just wilder than others! In this exciting mystery, these real kids, and new friends, encounter a whole lotta shakin’ going on in rattlesnake country! But when that shakin’ is coming from an about-to-strike rattlesnake—Y-Y-Yikes! 


The Mystery at Dolphin Cove

You are purchasing for Paperback format of this book. In The Mystery at Dolphin Cove you will encounter…. One dolphin darling! Two bottlenoses breaching! Three dejected dolphins! Four wet kids! And lots of click and whistles! The Mystery at Dolphin Cove takes readers on an awe-inspiring and action-packed adventure complete with thrills, chills, and wet kids! 


The Mystery of the Tarantula Trap

In The Mystery of the Tarantula Trap you will encounter…. One BIG spider! Two LONG fangs! Eight CRAWLING legs! Sixteen flabbergasting facts! And a few bouts of arachnophobia! The Mystery of the Tarantula Trap readers on an awe-inspiring and action-packed adventure complete with thrills, chills, and a BIG spider! Clues set in motion a wild adventure filled with science, high-tech gear, and fun! “Once you get tangled up in this mystery, you won’t want it to end!”


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