Told in separate voices, Lena and Aubrey, each hiding her own secrets, set off in search of the truth about Charlie, including if he is really dead, after meeti

"I tore through this urgent, timely, and deeply disturbing tale.”—Andrea Bartz, New York Times bestselling author of We Were Never Here Spine-chilling and s

In this sequel to the New York Times bestselling Charlie Thorne and the Last Equation—which #1 New York Times bestselling author Chris Grabenstein called “a