Revenge: The Enigmas Trilogy (Book 2) by P F Dixon

If you love Young Adult fantasy (paranormal) then you'll love this.

It's only been a few weeks since Stephanie Hope's life was turned upside down.

Discovering that she possessed special abilities, and locating her birth mother was just the start.

Finding herself living in an underground community, with other Enigmas, and her friends Jess and Zack, and in hiding from The Collector, she's finally learning how to control her abilities.

But living in the commune isn't easy, and feeling guilty for dragging her friends into her mess, and abandoning Zack when he needed her the most, Steph has a lot of making up to do.

With one of her friends dead at the hands of The Collector, and another missing, she vows to master her abilities and take her revenge.

But being the key to saving her kind isn't easy, and with the High Council worried about The Collector discovering the truth, exacting revenge isn't going to be straightforward.