Fi is a bookish treasure hunter with a knack for ruins and riddles, who definitely doesn't believe in true love. Shane is a tough-as-dirt girl warrior from the north who likes cracking skulls, pretty girls, and doing things her own way. Briar Rose is a prince under a sleeping curse, who's been waiting a hundred years for the kiss that will wake him. Cursed princes are nothing but ancient history to Fi--until she pricks her finger on a bone spindle...

Trapped in a tower with Briar Rose, Fi faces the Spindle Witch's threat and the imminent discovery of Siphoning Spells, while Shane seeks a weapon to save Andar and contends with the danger of Red's betrayal and the ruthless Spindle Witch's executioner, leading them to unravel the secrets of the Tomb of Queen Aurora.