Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A boy gets turned into a dog

This is definitely worth reading if you can find a copy. A teenaged boy offends a practicer of black magic, who subsequently turns him into a dog to "teach him a lesson." Arthur's adventures lost in New York City as a mangy, ownerless dog are heartfelt and intriguing. Unpredictable and very original -- I loved this book as a child!