The final book in the Wizards of Once quartet - the No.1 bestselling series from the author of How to Train Your Dragon. Warriors and Wizards combine forces against the dreadful power of the Kingwitch, whose searing evil threatens not only the Wildwoods, but all its creatures. Xar and Wish are on the final leg of their journey.

First stop: The Mines of Unhappiness. Here, starvation is never far away for the Magical creatures who toil in its horrible depths. Xar and Wish must escape and fast; Xar needs to take control of his ever-growing Witchstain, and Wish must achieve her Destiny. But the Tazzelwurm is in their way, a grotesque monster who threatens to block every entrance. Time is not on their side, but the forests are calling them. Will their combined strength be enough for the BIGGEST quest so far; to defeat the Kingwitch once and for all?