Books in the Turns Out I'm An Alien series

''''Last month I found out I was an alien. I also found out that my real parents are slugs and that I''m the rightful heir to a planet full of green slime. This month, things have got really weird. ''''JasperΓÇÖs settling into life with two sets of parents and without two sets of pocket money. Oh, and being an alien. It seems everythingΓÇÖs gone back to normal (well, as normal as normal can be) until Holly drags him to a Harry Handsome concert... and thatΓÇÖs not the worst part. This devious popstar slash alien secret agent seems to be up to something, and it involves brainwashing the entire planet!

Jasper thinks his life is as normal as can be (green hair aside) until he discovers his foster parents have been witholding a pretty huge secret from him. His green hair isn't just a perculiarity but a trait of a Prince of Glooop, a slime-covered planet in the Triangulum Galaxy. When Earth is under threat from the Emperor Iko Iko Iko, Jasper and his foster sister, Holly, get pulled into a rather crazy adventure in space. Things get even crazier when he discovers he has a superpower... but not super strength or super speed ... nope, he can turn into a slug. He just wants to liberate his home planet, foster galaxy and save his parents.