The three adventurers continue their search for the missing gems from the magic belt of Deltora. In order to find the heir to the throne and end the Shadow Lord's tyranny, the fourth gem, the heavenly lapis lazuli, must be found. But the ordeal ahead is complex with separation, confusion and strange, terrible enemies to be overcome before their goal is reached. They are now headed for the Shifting Sands, a shimmering, barren waste where terrible enemies await them.