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The Casey Grimes Series: A Fast, Funny Fantasy Action Adventure

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Three full-length novels and a novella in one volume! This 4-in-1 collection is packed with adventure, courage, and of course, monsters.

The Mostly Invisible Boy (Casey Grimes #1)

Casey Grimes thinks his invisibility is permanent until he finds a secret forest society in charge of monster control. Now he’s got a chance to belong—if he can stay alive long enough.

Trickery School (Casey Grimes #2)

Monster-control academy starts for Casey & Gloria, but there's one little A secret enemy who's playing for keeps.

Crooked Castle (Casey Grimes #2.5)

When Brook, an orphan with a knack for survival, is dumped on a deadly island—by a beast that shouldn’t exist—all she knows is she’s far from her group home in Weed, California. And haunted by a past that stays just out of reach.

The Ghost of CreepCat (Novella)

When Lila Banks takes a hike, she doesn't expect to be stalked by the ghost of her recently-deceased cat.

A fast-paced middle grade fantasy/adventure book with all the monsters and magic boys and girls could ever hope for. This volume includes books #1, #2, #2.5 and a novella in the award-winning Casey Grimes Series.Compare: If you bought these books individually, you'd pay a minimum of $60.

778 pages, Kindle Edition

Published December 22, 2022

38 people are currently reading
32 people want to read

About the author

A.J. Vanderhorst

18 books58 followers
AJ Vanderhorst has had many jobs, including journalist, paramedic, escape artist, and baby whisperer. One time in fifth grade, he built a traffic-stopping fort in a huge oak tree, using only branches and imagination, and slept there for a week.

Now he and his wife live in a woodsy house with their proteges and a ridiculous number of pets, including a turtle with a taste for human toes. This makes AJ an expert on wild, dangerous things—invisibility spells, butcher beasts, hungry kids, you get the idea.

He is the only author in the world who enjoys pickup basketball and enormous bonfires, preferably not at the same time. He and his family have drawn up several blueprints for their future tree castle. Visit AJ online at ajvanderhorst.com.

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2 reviews
January 20, 2024
I didn’t expect to like middle school literature. But I did!! Parts of the series felt Harry Potter-ish (civilian/muggle child joining a magical school). The Crooked Castle left me asking who Brooke was, and how she might be connected to Sylvan Woods.
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