In this fast-paced, thrilling journey through time, archaeologist David Preston comes into possession of a baseball supposedly signed by the legendary Ty Cobb in 1908, thanks to Ariyl Moro and her mysterious companion, Jon Ludlo. Except the ball tests out to be an impossible paradox. It was signed with a ballpoint pen (not invented until 1938) using ink that's several centuries older. But then, Ariyl and Ludlo aren't who they claim to be either.