This Darkness Mine

Mindy McGinnis, award-winning author of The Female of the Species and A Madness So Discreet, returns with a new dark and twisted psychological thriller-perfect for fans of Gone Girl and Fight Club. Sasha Stone knows her place-first-chair clarinet, top of her class, and at the side of her Oxford-wearing boyfriend. She's worked her entire life to ensure her path to Oberlin Conservatory as a star musician is perfectly paved.
But suddenly there's a fork in the road in the shape of Isaac Harver. Her body shifts toward him when he walks by, and her skin misses his touch even though she's never known it. Why does he act like he knows her so well-too well-when she doesn't know him at all?Sasha discovers that her by-the-book life began by ending the chapter of another: the twin sister she absorbed in the womb. But that doesn't explain the gaps of missing time in her practice schedule, or the memories she has of things she certainly never did with Isaac.
Armed with the knowledge that her heart might not be hers alone, Sasha must decide what she's willing to do-and who she's willing to hurt-to take it back. She thought she was in control of her own mind. She was wrong. A Twisty Psychological Thriller: Perfectionist Sasha Stone's carefully curated world unravels when she discovers the dark secret she's been carrying since birth. Terrifying Missing Time: Gaps in memory, disturbing new urges, and recollections of a passionate romance with a boy she's never met force Sasha to question her own sanity.
An Identity Crisis: When Sasha learns she absorbed her twin, Shanna, in the womb, she must fight for control of a body-and a heart-that may no longer be her own. A Dark High School Mystery: A magnetic, dangerous boy named Isaac acts like he knows all of Sasha's secrets. The truth of their connection is more terrifying than she can imagine.