This book is called Boy vs Beast (Infernix) this is part 3 of the series and I chose this book because I like the selection of weapons he has and the vehicle customisations and just the battles really. Its a very great book in this series the main character is Kai he is a border guard training to be a border master he has a pet robot called BC3 they fight of the monsters that try to break into earth sometimes he loses and sometimes he wins when he wins he gets upgrades and when he loses the monster gets upgrades
