#1 New York Times bestselling author Sara Shepard (Pretty Little Liars) and artist Stephanie Pepper take readers on a thrilling mystery that is sure to keep readers on the edge of their seats! After a long summer, four teens from various walks of life return to Gotham City with devastating secrets—and some unexpected talents.

Gotham City is a place where people of all walks of life mingle, where the weird, opulent, and violent are celebrated. Helena Bertinelli lost her family here. Barbara Gordon suffered a tragic accident. Dinah Lance ran away from the foster system. And Harleen Quinzel is looking for her place. But each of these girls is hiding something—a secret that could destroy their lives in an instant.

When strange things start happening to students at Gotham Prep, everyone at the school is on edge, worried they might be next. Will Helena, Barbara, Dinah, and Harleen be able to put their differences aside and learn to trust each other in time to find out who is behind the mysterious accidents before another victim turns up?