|| Book Review || The Mostly Invisible Boy (Casey Grimes #1) by A.J. Vanderhorst ||

If you enjoy what I am doing with my blog then you can support me by shopping on Amazon via my affiliate links. This will come at no extra cost to you and will result in me being paid a small commission. This is always appreciated but never expected. You can view my Amazon Influencer page **HERE** to browse all the books that I recommend. You can also see up to date Amazon book deals on my sidebar or alternatively if you want to you can buy me a coffee!


Genre: Fantasy

Age category: Middle Grade

Release Date: May 27th 2021

My Rating:✨✨✨.5

Buy on Amazon (UK, Affiliate Link)

Eleven-year-old Casey is stubbornly friendly, but he’s eternally the new kid at Vintage Woods Middle School. Students look right through him—and they’re not faking. Casey doesn’t know why he’s mostly-invisible, but when he scales a colossal oak, he discovers a fortress in its branches. The forgotten sentry tree marks the border between his safe, suburban life and a fierce frontier.

Casey and his little sister Gloria infiltrate Sylvan Woods, a secret forest society devoted to ancient, wild things. Sky-high footpaths. Survival sewing. Monster control. Shockingly, people here actually see Casey—but being seen isn’t enough. He wants to belong.

Keeping his identity hidden–while struggling to prove he fits–is hard enough, but Butcher Beasts have returned to Sylvan Woods after a hundred years. Trickery is under siege. As the monsters close in, and the fearsome Sylvan Watch hunts Casey down, he and his newfound friends must unearth abandoned magic, buried at the forest’s roots…or be devoured along with everyone else, Sylvans and civilians alike.

A fast-paced middle grade fantasy/adventure book with all the monsters kids could ever hope for. 

Thank you so much to Dave at TheWriteReads for organising the tour and the author and publisher for providing a gifted digital copy of the book for me to read and review.

This is an absolutely adorable middle grade adventure with lots of tree climbing, a secret forest community and of course monsters to be dealt with!

Casey Grimes is 11 years old and he is invisible to the world pretty much all the time. The bus doesn’t stop to pick him up, the kids at school see right through him and like any child he just wants to be seen.

Casey loves to climb trees and is fascinated by the forest by his house. One day Casey discovers a giant oak tree that he has never seen before. There is something special about the tree that he can’t put his finger on but he is determined that he has to climb it and find out.

Upon reaching the top he discovers a whole new world that he never even imagined existed. A community of forest dwellers known as Sylvans who protect civilians like him from the monsters that dwell in the woods.

Casey, upon telling his little sister Gloria about this magical place that he has found ends up discovering that she is just as invisible as he is, a very special bond is formed between the two siblings and they climb the huge oak together. This then leads to meeting a Sylvan called Luci and they all become fast friends and have wild adventures together.

This book is amazing for children who want to lose themselves in another world, who enjoy nature and tree climbing and fighting monsters!

I loved the relationships between all the main characters. I found them all to be very sweet, believable and very relatable for children and even adults alike. Casey’s journey to finding a place where he feels he truly belongs is one I think many can enjoy.

It is heartfelt, funny and very fast paced!

The pacing is my main criticism when it comes to this book. I would have loved to explore this forest world a lot more as I think there is so much more to see, learn about and enjoy. I didn’t like how the book seemed to jump in time from one paragraph to the next without any warning. It left me feeling like I had somehow missed something. This is a common thing with MG books that I have read in the past though but it is something that bugged me so I felt it was worth a mention.

I was also not at all keen on Casey’s parents and the strange nanny. None of these characters or the way they behaved made any sense to me at all.

Overall I found the book charming and very typical of middle grade stories in general. It was an enjoyable, fast read that I would recommend. 





About the Author
(from Goodreads)

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.


Have you read this book? Do you want to? Share your thoughts in the comments below and let’s discuss! ♥


Leave a Reply

%d bloggers like this: