Turns Out I'm an Alien

"I'm Jasper. I'm eleven years old and four foot six inches tall, with green eyes and green hair, and this year I found out something amazing about myself. Turns out…" Jasper thinks his life is as normal as can be (green hair aside) until he discovers his foster parents have been withholding a pretty huge secret from him. It turns out he is an alien! So when Earth is in danger from Emperor Iko Iko Iko (son of Iko Iko, grandson of Iko), Jasper and his foster sister, Holly, get pulled into a rather crazy adventure in space.