A missing heart. A magical deal. A sprinkling of fate. Prague, 1769. In the Magic Quarter of the jewel-box city of Prague, Thea runs Stiltskin's Apothecary. There, she brews potions to chase away nightmares and soothe heartache - and strikes bargains to change her customers' fates. The only fate she cannot change? Her own. Seven years ago, Thea bargained away her heart and her memories to the apothecary's owner, the cold, yet enigmatic Jasper, for reasons she cannot remember, and a reward she cannot recall.

Then one day a stranger arrives with an unusual request. One that will upturn Thea's entire existence - and offer her a precious chance to recover her heart .