The Hawthorne Legacy By Jennifer Lynn Barnes (Inheritance Games series #2)

"You aren't a mystery to me, Avery, because deep down, we're the same"

Thanks to a DNA test, Avery knows that she's not a Hawthorne by blood, but clues pile up hinting at a deeper connection to the family than she had ever imagined. As the mystery grows and the plot thickens, Grayson and Jameson, the enigmatic and magnetic Hawthorne grandsons, continue to pull Avery in different directions. And there are threats lurking around every corner, as adversaries emerge who will stop at nothing to see Avery out of the picture - by any means necessary