In book two of the Time out of Time series, the excitement and mystery continue as Timothy; his sister, Sarah; and their friend, Jessica, journey to Edinburgh, Scotland, where they seek the Four Treasures, especially the Telling Stone. They must keep the treasures from falling into the hands of Balor, who will use them to deprive the world of good. The children pass through Time out of Time as they undertake their quest, encountering mythic and folkloric characters, including the Tuatha Dé Danann, Gwydon, and Cerridwyn.