Secret of the Forbidden CityBook - 2015
"The Kidd children--including twelve-year-old twins Rebecca and Bickford--follow mysterious clues that take them from China to Germany, in the hopes of finding their missing father and the treasure that will finally free their kidnapped mother"--
Publisher: New York ; Boston : Little, Brown and Company, c2015.
Edition: First edition.
Characteristics: 419 pages :,illustrations ;,21 cm.
Alternative Title: Secret of the Forbidden City.