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Horrible Harry #26
Horrible Harry and the Secret Treasure
Harry has always loved solving mysteries, and now his friends in Room 3B have learned to love it, too. So Harry challenges them to figure out what he has hidden in his giant, old suitcase. Led by a very determined Mary, the kids take turns solving clues and piecing the mystery together. Their hunt leads them from the classroom to the library, and even to Harry's grandfather's nursing home. Will they be able to solve Harry's mystery? Or will things go horribly wrong for the novice detectives?
80 pages, Hardcover
First published February 3, 2011
About the author
Suzy Kline
148 books59 followersSuzy Kline, nee Weaver, was an elementary school teacher for 25 years and most of her books are based on the experiences she had while teaching. Suzy and Rufus got married and had two daughters named Jennifer and Emily. Now, more than 24 years after writing her first book, Suzy has traveled all over the United States helping children learn how to enjoy reading and writing.
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Displaying 1 - 7 of 7 reviews
January 25, 2017
It had a moral in the story and it made me smile. The kids in the story went on their own detective adventure and it wasnt like the action books you see now. But a real story to make your mind work.
November 18, 2024
My son read this to me, and it was not really keeping either of our attention. It was okay
October 10, 2025
This was a really fun story that featured all of the class (the students we see, anyway) getting involved in a mystery.
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March 11, 2011The Horrible Harry series has grown on me over time, and this new volume has a clever puzzle and a clever twist. Rather than solving an existing mystery, this time Harry has to create a mystery for his friends to solve, in order to prove several points about solving mysteries. Their methods and solution are well-handled, and kids the age of Harry and his friends should enjoy this story, and learn some things along the way.
March 5, 2014
My children (6 and 9) love this series. I enjoyed this particular Horrible Harry book more than many of the others. It was fun and exciting. The children worked together. There was silliness. A fun, quick read to share with young children.
November 8, 2016
I loved this book. This book is so wonderful.
March 3, 2015
I read this to Sydney yesterday afternoon because she is sick a.
Displaying 1 - 7 of 7 reviews





