For three hundred years, the kingdom of Camellia has been stuck in a never-ending plague. A glowing claw mark on everyone’s wrists and a lifespan cut off at forty. No one knows how it started. No one knows its true purpose. And no one has ever been cured. Almost no one. When Isadora discovers an ancient gemstone, she is freed from the plague and unearths strange powers—powers Camellia hasn’t seen in centuries. Now every peasant, soldier, and assassin is on the hunt for Isadora, eager to take her down. That’s more than fine with Isadora—it’s exactly the kind of adventure she was waiting for. With the help of Terrance, the ever-skilled (and ever-arrogant) soldier, Isadora sets out on a quest to uncover the truth, lift the plague, and defeat the Eternal Rulers that started it all. But the Eternal Rulers are not to be messed with. They’ve snuffed out rebellious sparks before, and they can do it again, for they have secrets older than the plague itself—secrets that could mean the destruction of Camellia forever.