Suddenly, a visit to an ancient stone circle whisks her back into the past. She has been summoned, along with Arni, a boy from Viking times, and Tyaak, a half-alien boy from the 26th century, to search the past, present, and future for three broke......

Suddenly, a visit to an ancient stone circle whisks her back into the past. She has been summoned, along with Arni, a boy from Viking times, and Tyaak, a half-alien boy from the 26th century, to search the past, present, and future for three broke......