Books like Return of the Squirtle Squad

This book was very exciting! I felt like I entered the place where the story took place while reading it.This story was about Ash's Squirtle. They were with the Squirtle Squad, which made them think of the history of them meeting the Squirtles. The Squirtles were very naughty Pokemon, destroying towns. They then had a short journey before becoming friends. All of them wear sunglasses, which Ash's wear a big one. They then turned good and help people put out fires with their mighty fire-fighting skills.