"A twisty, deeply satisfying ride." --Sara Shepard, #1 New York Times bestselling author of Pretty Little Liars

In this dark academia young adult thriller for fans of The Female of the Species and People Like Us, a teen girl's search for answers about her mother's mysterious death leads to a powerful secret society at her new boarding school--and a dangerous game of revenge that will leave her forever changed.

Six years ago, Calliope Bolan's mother drove the family van into a lake with her three daughters inside. The girls escaped, but their mother drowned, and the truth behind the "accident" remains a mystery Calliope is determined to solve. Now sixteen, she transfers to Tipton Academy, the same elite boarding school her mother once attended. Tipton promises a peek into the past and a host of new opportunities--including a coveted invitation to join Haunt and Rail, an exclusive secret society that looms over campus like a legend.

Calliope accepts, stepping into the exhilarating world of the "ghosts," a society of revolutionaries fighting for social justice. But when Haunt and Rail commits to exposing a dangerous person on campus, it becomes clear that some ghosts define justice differently than others.

As the society's tactics escalate, Calliope uncovers a possible link between Haunt and Rail and her mother's deadly crash. Now, she must question what lengths the society might go to in order to see a victory--and if the secret behind her mother's death could be buried here at Tipton.