From The Imaginarium of L. G. Carrier: Ninja's First Challenge in Bloomington, MN

Liam always knew he was different. He just didn't know how different he was until his thirteenth birthday, when everything changed. Magic came to visit him on the night he was born and again when he turned thirteen. When magic returned, he is sent off on a quest to save the world. Liam teams up with his trusted friend to battle challenge after challenge in the hopes of saving the world.
Will they survive the trip to another dimension? Will they get back with the secret ingredient they were asked to find?