Patrick and Beth climb on board the Imagination Station in hopes of traveling to the land of leprechauns and shamrocks. When they reach fifth-century Ireland, however, there’s no rainbow or pot of gold waiting for them. Instead, they must escape from evil druids and find their way to the bishop, who is their only hope of safety. But after meeting the bishop, the cousins find that he’s a rebel set on defying the druids even though it could mean his death. Who is this man who isn’t afraid to die for his beliefs? Is he indeed safe, or will he lead Patrick and Beth toward the greatest danger they’ve faced so far?