Kate Gordon is a typical 12 year-old girl—until she suddenly journeys to a distant galaxy.  In the adventure of Heartlight, Kate embarks on a quest with her grandfather to save planet Earth…and also the life she holds most dear.

In her next adventure, Kate discovers a great redwood tree that is also a time tunnel. The Ancient One takes her on a journey back in time, where she must solve a deadly riddle so that a Native American tribe—and her own people in the future—can survive.

The Merlin Effect, Kate's next adventure, begins as she paddles her kayak out to sea. Before long, she plunges to the bottom of the ocean—and to the bottom of an ancient mystery that involves a sunken ship loaded with treasure, a group of ever-singing whales, and a magical horn from the time of King Arthur and the wizard Merlin.