I read this book when I was younger and enjoyed getting to read a book about true friendship. This book highlights two best friends and their journey together. It kept me closely engaged throughout the whole book because there is so many details in it. I think this book would be best fit for intermediate or middle school (4th-8th grade). The lexile level of this book is 810L. An activity I would use in the classroom would be creating a "bridge" of the plot. Students would write the setting, key details, and characters on this bridge that leads up to the climax of the book. This would be a good comprehension check and fun for the students to create too. They could color their bridges when they get finished.