The Wizard of the Stove Pipe Mountains: First Book of The Nebulæ Stone Series

Riccard and Rowina are on a mission to find their missing father, Ivan. Eventually, they arrive in the town of Weirdsdale, near The Stove Pipe Mountains. One of these, Vulcan occasionally emits weird lights, during which men caught outside at night disappear. Suspecting that Ivan has been captured by ‘The Lights’ they access Vulcan, finding it to be the home of Foxwald, who assures them that Ivan is not in Vulcan, but he allows them to stay and search. During Foxwald's absence, battling the forces of evil, they find their father, though he does not recognize them. Returning Foxwald is shocked to find that he himself is responsible for their missing father.