After her little sister goes missing, seventeen-year-old Claire Graham has a choice to make: stay snug in her little corner of Manhattan with her dropout boyfriend, or go back to Ohio to face the hometown tragedy she's been dying to leave behind. But the memories of that night still haunt her in the city, and as hard as she tries to forget what her psychiatrist calls her "delusions," Claire can't seem to escape the wolf's eyes or the blood-speckled snow. Delusion or reality, Claire knows she has to hold true to the most important promise she's ever made: to keep Ella safe. She must return to her sleepy hometown in order to find Ella and keep her hallucinations at bay before they strike again. But time is quickly running out, and as Ella's trail grows fainter, the wolves are becoming startlingly real. Now Claire must deal with her attraction to Grant, the soft-spoken boy from her past that may hold the secret to solving her sister's disappearance, while following the clues that Ella left for only her to find. Through a series of cryptic diary entries, Claire must unlock the keys to Ella's past—and her own—in order to stop another tragedy in the making, while realizing that not all things that are lost are meant to be found.