He was her best friend. Now he’s just the boy who killed her sister.

Once wild and fearless, Emma Adler is now crushed and lonelier than ever as she navigates life without her sister. She carries heavy guilt for not being there when her sister needed her most—the day Myles Green, the timid boy next door, pushed Mallory off a bridge.

When Emma is thrown back in time to three days before the incident, she’s determined to stop Myles from ever hurting Mallory, but when she finds herself getting close to him again, she starts to question everything she thought was true. Now, running out of time, will she be able to save her sister or will she be forced to watch history repeat itself?