One of Us Knows by Alyssa Cole

From the New York Times bestselling author of When No One Is Watching comes a gripping thriller about a caretaker trapped on an island with a murderer—and haunted by the ghosts of her past.

Years after a breakdown and a dissociative identity disorder diagnosis derailed her career as a historical preservationist, Kenetria Nash seizes a second chance as the caretaker of a historic estate. Unsure why her alters led her to this remote Hudson River island, Ken is determined not to squander the opportunity.

But her plans unravel when a Nor’easter traps her with members of the estate’s conservation trust, including the man who ruined her life years ago. When he is found dead, Ken becomes the prime suspect.

Now, Ken and her alters must navigate a maze of secrets, uncover the truth behind the eerie Kavanaugh Island, and confront their own fractured past. With time running out, their survival depends on piecing together the mystery and proving their innocence.