These monsters

aren't gonna police themselves.

Get your copy of the award-winning kids' fantasy

 Mostly Invisible Boy

absolutely free. 

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AJ Vanderhorst's Books

An alternate USA where monsters prowl. Secret forest societies. Forgotten magic.

A monster-control academy where battles are as common as breakfast.

And that's just getting started. 

Casey Grimes is invisible. Really. But that—along with a whole lotta other things—is about to change. 

Monster-control classes begin for Casey & Gloria, but there's one little problem: A secret enemy who's playing for keeps.

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© 2020 A.J. Vanderhorst