At midnight the state of Georgia executed the Blood Smile Killer, who carved Grin into his victims. But a new act was already in motion…

Minutes after the execution, Sheriff Parker Chord receives a package. Inside is a mason jar containing the missing eye of the killer’s last victim—and a note accusing law enforcement of murder.

The case was closed and considered solved. The killer is dead. Who’s finishing Grin’s work?

Desperate for answers, Parker reaches out to the only person capable of understanding the mind behind the madness: his estranged sister, profiler Dr. Cassidy Chord.

Being a former army helicopter pilot, Cassie has hunted killers before, but she’s late to the investigation and Grin’s had years to prepare and perfect his revenge. While Cassie and Parker play cat and mouse chasing the sadistic killer, one by one, the people involved in the original trial—a judge, an FBI agent, a retired sheriff, and a witness–are terrorized or killed.

Will Cassie and Parker be able to find the killer and stop him in time before the bodies start to pile up?

Enter to win below. Good luck!