The Awakening By Kelley Armstrong

(Darkest Powers # 2)
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If you had met me a few weeks ago, you probably would have described me as an average teenage girl - someone normal. Now my life has changed forever and I’m as far away from normal as it gets. A living science experiment - not only can I see ghosts, but I was genetically altered by a sinister organization called Edison Group. What does that mean? For starters. I'm a teenage necromancer whose powers are out of control: I raise the dead without even trying. Trust me, that is not a power you want to have. Ever.
Now I’m running for my life with three of my supernatural friends - a charming sorcerer, a cynical werewolf, and a disgruntled witch - and we have to find someone who can help us before the Edison Group finds us first. Or die trying.