Almost one year ago, Alice TodHunter Moon left her PathFinder village to become Apprentice to ExtraOrdinary Wizard Septimus Heap. She learned that the Magyk of the Castle comes from the power of the great block of lapis lazuli beneath the Wizard Tower.

But in faraway lands, the brilliant blue stone is crumbling to dust. Soon the destruction will spread to the Castle, and its Magyk will be destroyed. Tod sets off on a hazardous journey to find the ancient object that will reverse the UnRaveling, and save the world of Septimus Heap.

“Rich world-building, endearing characters, and a plot that will keep readers guessing are only a few of the treats that await fans in this final installment of the trilogy.”— Kirkus Reviews

The fate of the Castle rests on Tod’s shoulders.

• A Young Apprentice on a Mission: Alice TodHunter Moon must prove her worth as she travels to faraway lands on her most dangerous mission yet.
• Fantasy World-Building: Perfect for fans of the Septimus Heap series, this adventure expands a beloved world of enchantments, wizards, and magical history.
• Witches, Sorcerers, and Dragons: Tod will need all her courage to face cunning witches, powerful sorcerers, and even dragons on her journey to save the Castle.
• The Final Book in a Trilogy: The satisfying conclusion to the TodHunter Moon story arc, where the fate of Magyk itself hangs in the balance.