In Red Valley, California, you follow the rules if you want to stay alive. But even that isn't enough to protect Sadie now that she's unexpectedly become the Liar: the keeper and maker of Red Valley's many secrets. In a town like this, friendships are hard-won and bad blood lasts generations, and when not everyone in town is exactly human, it isn't a safe place to make enemies. And though the Liar has power-power to remake the world, with just a little blood-what Sadie really needs is answers: Why is the town's sheriff after her? What does the King want from her? And what is the real purpose of the Liar of Red Valley?