McGrowl is one of my favorite book series. In total it spanned six books, all of which I loved. McGrowl is a fun and loyal bionic canine hero with the ability to communicate telepathically with the boy who will becomes his new owner in book one of the series. In book one, McGrowl was separated from his owner, at which time he develops his new powers. Like many superheroes, McGrowl doesn’t come by his abilities naturally, but he uses them well.