Dark Forces #2 My Blade, Your Back K.M. Moronova

One month after surviving the Under Trials, Emery Maves finds herself in a world she doesn't recognize―with a man whose cold eyes are haunted by secrets she can't remember. Stripped of her memories, Emery is tormented by dreams of danger, death, and deceit. The only constant is the lure of the experimental drug that shatters her mind but leaves her almost invincible―and the dangerous pull of the man called Mori.