Blast to the PastBook - 2006
David and Ben use a time machine to zip back a few days and retake a test they flunked. But time travel is tricky. Instead of zapping back to history class, the boys might become history.
Publisher: Mankato, Minn. : Stone Arch Books, c2006.
Characteristics: 32 p. :,col. ill. ;,24 cm.