Sophia Freeman and the Underground Warriors (Book 5)

Sophia Freeman Series

Children - Fantasy/Sci-Fi
Kindle Edition
Reviewed on 09/22/2025
Buy on Amazon

This author participates in the Readers' Favorite Free Book Program, which is open to all readers and is completely free. The author will provide you with a free copy of their book in exchange for an honest review. You and the author will discuss what sites you will post your review to and what kind of copy of the book you would like to receive (eBook, PDF, Word, paperback, etc.). To begin, click the purple email icon to send this author a private email.

This author participates in the Readers' Favorite Book Donation Program, which was created to help nonprofit and charitable organizations (schools, libraries, convalescent homes, soldier donation programs, etc.) by providing them with free books and to help authors garner more exposure for their work. This author is willing to donate free copies of their book in exchange for reviews (if circumstances allow) and the knowledge that their book is being read and enjoyed. To begin, click the purple email icon to send this author a private email. Be sure to tell the author who you are, what organization you are with, how many books you need, how they will be used, and the number of reviews, if any, you would be able to provide.

Author Biography

Thuan Doan is an award-winning author of the Sophia Freeman series. He conceived his first middle-grade fantasy novel, Sophia Freeman and the Mysterious Fountain, during a trip to Gabriola Island, British Columbia in the summer of 2013. Then he took his work and settled in a small town of Enderby, where it’s peaceful and quiet. 4 years later, the story was complete. While book one, two, three and four are being shared with the world, he's writing and illustrating the last book of the series.

Thuan is writing under a pen name of T.X. Troan. “X” stands for Xu, his grandmother’s name who passed away. And “Troan” is a combination of his parents' names.

“No matter how this turns out, I want my family to be a part of this wonderful journey.”

    Book Review

Reviewed by Isabella Harris for Readers' Favorite

Sophia Freeman and the Underground Warriors by T.X. Troan is an action-packed adventure that follows the journey of Sophia, the "Chosen One," and her friend Tim as they try to restore life on their island. The narrative begins with Sophia and Tim surviving a fall from a cliff with an ancient tree monster called Tombermon. Having lost his memory during the fall, Tombermon is convinced he's a good person and is given the name Heromon. Together, Sophia and her crew stumble upon a cave where they find clues left by the legendary inventor Ronuke that could help them defeat Scarlon, a villain who has taken over their island. According to the clues, they must find two mythical weapons called the Ultimatrium and the Rainbow Pearl. The quest for these mythical weapons leads them to new allies called the Remainders, a peaceful group of non-magical creatures. Together, they search for the mythical weapons and must train to defeat Scarlon and his army.

I was particularly impressed by how Sophia and Tim struggled with the idea of keeping Heromon's true identity a secret. It kept me guessing: 'What if Heromon regains his memory? Would he go back to being evil, or would he remain loyal to Sophia?' I was amazed by T.X. Troan's ability to use magical logic during intense action. The characters were well developed, particularly the Remainder's quest to master magic to defeat Scarlon and his army. The illustrations throughout made it easy for me to understand certain scenarios and gave me a clear view of the world of Pandilone Island. Troan has a clear writing style that uses simple and direct language. Sophia Freeman and the Underground Warriors has a really fast pace and is filled with lots of action and suspense. The book explores themes of hope, courage, and family bonds. I recommend this book to readers who are interested in fantastic adventures filled with lots of magical action.