Kat and Jessie join Marco Polo at the court of Kublai Khan in ancient China. Niece and aunt try to help a princess who's being forced into a terrible marriage. At the same time, they hope to convince the Khan to let Marco finally leave China ...
after 17 long years. But the two travelers discover they're trapped too when a medallion that powers the time machine is stolen! Full color illustrations throughout. Ages 7 and up.