Tamsin Lark didn’t ask to be a Hollower. As a mortal with no magical talent, she was never meant to break into ancient crypts, or compete with sorceresses and Cunningfolk for the treasures inside. But after her thieving foster father disappeared without so much as a goodbye, it was the only way to keep herself—and her brother, Cabell—alive. Ten years later, rumors are swirling that her guardian vanished with a powerful ring from Arthurian legend. A run-in with her rival Emrys ignites Tamsin’s hope that the ring could free Cabell from a curse that threatens both of them. But they aren’t the only ones who covet the ring.