Bellona has been taught to hate and fear the mysterious beings known as the s’orne since she was a girl. She knows if she were ever infected with the fever they spread, she would go insane within seconds and die within hours.

As the local defenses mobilize to fight a s’orne invasion, Bellona scrambles to save her loved ones from the impending attack. Desperately, her group races to escape the city’s walls before a contagion of insanity erupts.

With attacks exploding across the country, an unlikely twist of fate reveals the true purpose of the s’orne to Bellona, challenging everything she has been taught about them. While she struggles to accept the unknowable secrets she has learned, the city’s bell towers begin tolling the alarm for lockdown, signaling that the s’orne have arrived.