It's been months since the end of the Golden Frog Games, and a cure for the hex that turned young witches to stone still hasn't been found. Seven and Thorn want nothing more than to find a way to heal their friends, but everything they try ends in failure.

When the Black Moon Ceremony arrives earlier than expected, Seven and Thorn take it as a chance to welcome any new Spares into their coven. But rather than welcoming a few Spares like they thought, all the witchlings in the ceremony are chosen to enter the Spare coven!

The new Spares are met with anger from the Hill Society. They create more unfair laws that ban Spares from using magic and being equals in Twelve Towns society! On top of all that, Spares start disappearing. And no one seems to care.

As Seven and Thorn struggle to find a cure for the stone hex and to stop the Twelve Town's unfair treatment of Spares once and for all, they discover a piece of hidden history that will change everything-if they can get anyone to listen to them.