Hardcover
The Missing: Book 2
Author: Margaret Peterson Haddix 
Genre: Young adult, Sci-fi
Year published: 2009
 
Sent is the second book in the Missing series and continues the journey of Jonah, a 13-year-old boy who discovers he is part of a group of children who were mysteriously "taken" from different points in history and brought to the present. In Sent, Jonah and his friends are sent back in time to the year 1843, during the time of the missing princes of England. As they try to uncover the secrets behind their mysterious abductions and the purpose of their time travel, they face danger and must work together to solve the puzzle before it's too late.