Runaways : an original novel
(Book)

Turns out murderous Super Villains don't make for good parents. The Runaways had no choice. They had to kill them. Well, more or less. Now Nico, Karolina, Gert, Chase, and Molly are on the run again, hiding out and trying to regain a sense of normalcy. But kids with super powers don't get to be normal. The city is overrun with criminals, each faction bent on murdering them for one reason or another. It's only when the Runaways uncover the truth behind their parents' past that they realize the evil isn't just in L.A. It's everywhere. -- from Amazon.