The Lighthouse at the World's End

In the final installment of the House at the Edge of Magic series, Nine and her friends journey to the mortal realm in pursuit of a priceless stargold locket that could help them escape a tricky witch. Their quest takes them into the Nest of a Thousand Treasures, guarded by a former adversary, and requires them to unlock the locket’s true power. Their adventure leads them through the mysterious World Between Worlds to an illusionary lighthouse, where nothing is quite as it appears.