The fourteenth, fifteenth, and sixteenth books and the first special edition introduce the plot involving Zara, the Queen of Light, and her three sons: Urik, Galen, and Sparr; Zara, who was kidnapped along with Sparr by Ko, emperor of the long-lost evil Empire of Goll, and brought to Droon.
The fourteenth, fifteenth, and sixteenth books and a special edition launch the plot involving Zara, the radiant queen, and her three sons: Urik, Galen, and Sparr; Zara, who was abducted by Ko, emperor of the long-lost evil Empire of Goll, and brought to Droon.