Stephen Mark Rainey

On a hike along the shores of Lake Superior, thirteen-year-old Anna Hendrix sees a huge creature rise from the waters and—to her horror—sink a tour boat. Soon afterward, Jeff Griggs, also thirteen, encounters a similar but smaller creature in the woods around his parents’ vacation house.

Unable to resist investigating, both Anna and Jeff venture into the nearby forests. They meet each other at a huge waterfall, where they discover a partially hidden cave. Inside it, to their surprise, they find a cave painting of a creature that resembles the ones they have seen. Suddenly, in a bizarre twist of time and space, the youngsters are transported to strange, unknown land, vastly different from the Michigan they know. Here, they meet a strange but friendly young man who calls himself Skyhawk. He claims to be a member of a civilization that can only be reached by way of the cave.