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The Sylvan Spy
by AJ Vanderhorst
Join 25,000 fans and get the latest news on the Casey Grimes books and insider tips on how to survive a monster attack. Get some cool freebies for joining too, like insider guides to the novels and an exclusive short story, Remember To Stay Dangerous. Yes, it's all totally free and kid-friendly!

AJ Vanderhorst
Mar 15, 20241 min read
The Casey Grimes FAQ
Lots of readers find Casey Grimes on social media, so loads of questions are constantly being asked about the books.
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AJ Vanderhorst
May 20, 20212 min read
Glorious News of Freedom
A big, long-awaited development with the Casey Grimes books.
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AJ Vanderhorst
Jan 21, 20212 min read
New Year, New Casey Grimes
Happy new year!—and maybe more to the point, here's hoping you've enjoyed some pleasant distractions lately. A few recent favs at our...
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AJ Vanderhorst
Dec 7, 20201 min read
Where in the Woods is Casey Grimes (#2)?
People keep asking me when hard copies of Trickery School (Casey Grimes #2) will be available. The answer is any day now...but since...
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AJ Vanderhorst
Nov 23, 20202 min read
Casey Grimes #2—TRICKERY SCHOOL
CASEY GRIMES at TRICKERY SCHOOL from INtense Publications is due to be published in a week!
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AJ Vanderhorst
Sep 25, 20203 min read
Casey #2 Update and a Big Award
Casey earned bronze in the Readers’ Favorite International Awards Contest, a competition that attracts thousands of entries annually.
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AJ Vanderhorst
Jul 17, 20202 min read
Casey Grimes Slow-Burning Summer Update
5-star reviews, an author interview for Wild + Free, a call for kid art and other Casey Grimes news.
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AJ Vanderhorst
Jul 14, 20201 min read
Casey Grimes Author Interview for Wild + Free
Here's an extended clip from an author interview I recently filmed for the national homeschool group, Wild + Free.
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AJ Vanderhorst
Jul 13, 20201 min read
A Call for Casey Grimes Kid Art
All this colorful, horrifying Casey Grimes art is too good to waste. So in the near future, I’ll be adding a Gallery to show it off.
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AJ Vanderhorst
Jun 9, 20201 min read
Mostly Invisible Boy is Book of the Month!
Casey is Book of the Month for June in Goodreads' largest middle grade group, Great Middle Grade Reads.
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AJ Vanderhorst
May 18, 20202 min read
The Book is Out There!
The Mostly Invisible Boy doesn’t just belong to me and my family anymore.
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AJ Vanderhorst
Apr 20, 20202 min read
The Book Debut Post
During a pandemic is a crazy time to do a lot of things...having a book debut is definitely one of them.
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AJ Vanderhorst
Mar 12, 20203 min read
Casey Grimes Update, March Edition
News on cover design, title selection and a pub date for The Mostly Invisible Boy.
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AJ Vanderhorst
Feb 4, 20203 min read
Three Things I Learned from Writing a Sequel (Casey 2)
Experience in writing a sequel is something you don’t get until after you need it.
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2 comments


AJ Vanderhorst
Nov 5, 20192 min read
Invisibility Ho! And How to Escape It
Many big accomplishments have been made possible by the i-power. But invisibility has a way of bleeding over into real life...
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AJ Vanderhorst
Oct 9, 20193 min read
First Ever Official CASEY GRIMES Update!
Every journey into a secret forest society in charge of monster control begins with a single step.
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AJ Vanderhorst
Aug 17, 20193 min read
A Little Backstory On My Heroic Writing Journey
I wrote my first middle grade novel in 2013. A naive burst of creativity.
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