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Geronimo Stilton

The Guardian of the Realm

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Fairies, dragons, wizards, and more await Geronimo on every magical Kingdom of Fantasy adventure! During Geronimo's training on the Balanced Path, he learned that Queen Blossom has had a baby! The Kingdom of Fantasy had a new princess named Winglet!But just after she was born, the princess was kidnapped from her crib in the castle. Geronimo traveled to the castle to help figure out who took Princess Winglet and return her to her loving parents as quickly as possible. Would his training be enough to get him up to the task?

320 pages, Hardcover

Published August 28, 2018

262 people are currently reading
780 people want to read

About the author

Geronimo Stilton

2,054 books3,200 followers
A pseudonym of Elisabetta Dami, see also Tea Stilton.

Elisabetta Dami is an Italian author that currently resides in Italy. She is the author of the Geronimo Stilton series, a bestselling childrens book. She enjoys traveling the world seeking ideas for her series. She writes under a pseudonym of Geronimo Stilton. She is also a co-owner of Italian based publishing company Edizioni Piemme.

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Community Reviews

5 stars
629 (67%)
4 stars
176 (18%)
3 stars
87 (9%)
2 stars
25 (2%)
1 star
12 (1%)
Displaying 1 - 30 of 39 reviews
Profile Image for Reanne lee.
1 review
August 30, 2018
This latest adventure is sooo awesome and exciting! I can’t wait for more!!XD
Profile Image for Charlie.
128 reviews6 followers
September 3, 2018
Excellent plot-line and great ending! I love Clever Chameleon - cool character!
Profile Image for H.
1,015 reviews
September 10, 2018
In order to overcome a spreading evil, an intrepid traveler has to journey through an unknown land with a fellowship to aid him, in his quest to throw a shiny bauble into a fiery volcano.

Sound familiar? Not this is not The Lord of the Rings (movies or books). It is the eleventh in a series of a mouse traveling to a fantastic kingdom. But the plot is an homage *cough* stolen *cough* directly from there. Are the authors running out of original ideas?
Profile Image for Dan  Ray.
799 reviews3 followers
February 18, 2025
Another big hit for Geronimo Stilton.
This was the first book in the series that we read with such a high page count, but it worked very well and my son enjoyed it. There were some callbacks at the end to spiny grubs that he no longer remembered from the beginning.

A lot going on, a huge cast and a living world for a fan to dig into and enjoy. Looking forward to more adventures in the land of fantasy.
1 review1 follower
September 30, 2018
It may be a good book and i think it may be the greatest book for geronimo stilton
This entire review has been hidden because of spoilers.
8 reviews
April 24, 2025
This book was a fun and magical adventure. Geronimo gets pulled back into the Kingdom of Fantasy and has to help save it again. The story moves fast, with lots of creative creatures and colorful places.

What makes it stand out is Geronimo himself—he’s nervous and clumsy, but still brave in his own way. It’s easy to relate to him. The illustrations and playful fonts make it even more fun to read, its visual representation is off the charts, probably one of the most creative books I have ever read.


Overall, this book is a perfect balance of humor, fantasy and clumsiness, which is suitable for young readers and adults.
4 reviews3 followers
October 21, 2019
This was such a cute fantasy book for kids. We took about 3 weeks to read this for 15 mins at bedtime, and the boys loved it. The book is long, but each chapter is short and the illustrations are so fun to keep the kids intrigued. We loved following this mouse on his adventure, and by the end my son was itching to figure out who had betrayed Geronimo. We will definitely continue to read more books in the series as these are great gateway to reading books for kids. It is intended for middle grades, 4-8th grade.
Profile Image for Anubhav Jalan.
117 reviews5 followers
April 2, 2020
Gifted by her Fuffad to Aasya, this was her first Geronimo book. She was excited to read about the adventures of little mouse and how he becomes a superhero with help of all his friends. From an adult reading it, I felt that there were too many characters thrown into a book and each of them only having very role. But then it’s how life is. All of us have little part in this cosmic plan
Profile Image for Teoh May Xuan.
53 reviews12 followers
April 17, 2020
Oh boy, here we go again.
I have been a fervent fan of Geronimo since young and have been to all the journey to the kingdom of fantasy however it's getting boring now.
Took a long time for me to finish this, just not that interesting anymore, perhaps I have outgrown them.
Still, can't deny being in awe with the graphics.
I miss those old ,classic Geronimo stories.
205 reviews
July 25, 2022
This book might be my favorite book in the series so far. This definitely a book I would want to read over and over again. In this book Geronimo is working extra hard. In the end Geronimo saves the day with his cleverness.
Profile Image for Jade Duong.
10 reviews
January 25, 2019
Would recommend for middle-aged readers who are into fantasy but not quite at a young adult level.
Profile Image for Edward Davies.
Author 3 books34 followers
October 27, 2019
Wow this was long, three times longer than the usual Geronimo books. I think the boy got a bit bored during this, but he loved the illustrations.
32 reviews1 follower
May 19, 2020
Geronimo is always fun. Even if #11 feels like a Lord of the Rings rip-off
1 review
Read
August 27, 2020
Super
This entire review has been hidden because of spoilers.
11 reviews
November 11, 2020
The most funniest part is the helidragon being fed helibeans and again my favorite character is mel and my favorite thing is luminos the sword of light.
Profile Image for may.
20 reviews
August 31, 2022
show-stopping stunning perfect amazing
28 reviews
May 9, 2023
This book is a mix with twist and turns, with many different adventures throughout the whole book.
98 reviews1 follower
August 4, 2024
An amazing book.... Kept me going till the end.
1 review
November 12, 2025
O's first chapter book! He loved it. I also enjoyed it!
Displaying 1 - 30 of 39 reviews

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