The Valley of the Lost

Lief, Barda, and Jasmine have almost reached their goal. Six gems gleam in the Belt of Deltora. Now the last one must be found before Deltora can be freed from the evil Shadow Lord. The companions have faced many terrors before, but the worst is yet to come: they are about to confront dark mysteries that strength and courage alone can not defeat. If they fail, they will remain forever trapped in the swirling mists of The Valley of the Lost.

This is book number seven in the DELTORA QUEST series.