In the first of a series of chronicles told by Dr. Drake's young students, Daniel Cook and his sister Beatrice spend the summer with their parents' eccentric former tutor. Soon they are caught up in the race to find the stolen Dra.
Dr. Ernest Drake calls on his two newest students, twelve-year-old Daniel and his sister, Beatrice, to help protect the precious Dragon's Eye jewel from the evil dragonologist Ignatius Crook.