Review: The Mostly Invisible Boy by AJ Vanderhorst

Mostly Invisible Boy by AJ Vanderhorst

The Mostly Invisible Boy (Casey Grimes #1)
AJ Vanderhorst
INtense Publications
Published April 25, 2020

Amazon | Barnes & Noble | Book Depository | Indiebound | Goodreads

About The Mostly Invisible Boy

Eleven-year-old Casey Grimes is invisible. Really. When he leaves suburbia and infiltrates a secret forest society, he can finally be seen—but Sylvan Woods hates outsiders as much as it loves killing monsters. As Butcher Beasts invade, his flimsy cover story falls apart, and courage is his only chance to belong.

Mostly Invisible Boy on Goodreads

My Review

My favorite thing about this book was the relationship between Casey and his sister, Gloria. The story definitely paints Gloria as an unrealistic character. She’s a young child and she’s hardly ever rattled, always loves others, has complete confidence in her older brother. However, I think because there are so many other dark things happening in the book, I didn’t mind that so much.

I thought the world of the Sylvan Woods was pretty enchanting and unusual, though I was a little confused at times. Why did Gloria already know the names of the creatures? Who explained everything to his parents, or did they already know? Why was Casey invisible at the beginning of the story? I felt like there were some things that got left unanswered.

On the whole, though, I really enjoyed the relationships between Luci and Casey and Gloria. They exchanged some fun banter and had lots of wacky adventures. The story entertains from the first page to the last.

I think fans of books by Lemony Snicket will enjoy the bizarre situations and reality juxtaposed with unreality as well as the almost caricature-like minor characters. It’s the kind of story my daughter and I would have enjoyed reading aloud when she was in fourth grade.

Mostly Invisible Boy on Amazon

Content Notes

Recommended for Ages 8 to 12.

Casey and his family are white. Three of the Sylvans they meet are described as having brown/bronze skin.

Profanity/Crude Language Content

Romance/Sexual Content

Spiritual Content
Contains some magic and creatures of fantasy. Casey is literally invisible at the start of the story. Butcher Beasts, like giant wasps, seek to destroy the Sylvans.

Violent Content
Some situations of peril. Casey nearly falls out of a tree. Monsters chase him and Gloria through the woods and attack them in two different scenes.

Drug Content

Note: I received a free copy of MOSTLY INVISIBLE BOY in exchange for my honest review. This post contains affiliate links, which do not cost you anything to use, but which help support the costs of running this blog.

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About Kasey

Reads things. Writes things. Fluent in sarcasm. Willful optimist. Cat companion, chocolate connoisseur, coffee drinker. There are some who call me Mom.

2 Responses to Review: The Mostly Invisible Boy by AJ Vanderhorst

  1. Eileen Larkin Wilkin says:

    I just recently discovered your website. Thank you so much – so helpful for a mom with voracious readers!

    • Kasey says:

      Aw, yay! If you let me know what they like, I’m happy to recommend anything I’ve read that fits. 🙂