Jack's quiet life among his animal companions shatters when he accepts a seemingly simple race against the mysterious Allegra. What starts as friendly competition transforms into something far darker when Allegra reveals her true nature: she's a witch with sinister intentions. She drags Jack into the domain of Auriana, a powerful witch-queen whose ambitions extend far beyond magical pranks. Auriana has enslaved countless creatures and harbors a nightmarish plan to corrupt them all into monstrous harpies, twisted servants bound to her will. Separated from Barnaby, Dinah, Squeeker, and Phineas, Jack must navigate a world of magic and danger he never knew existed. The stakes aren't just about winning a race anymore. Jack discovers he's caught between two worlds: the innocent countryside he knew and a realm where magic serves cruelty and domination. To save both the enslaved creatures and return home, he'll need to find courage he didn't know he possessed and uncover whether there's any good left in those who traffic in dark magic.