In The Missing series, two men--Gary and Hodge--had gone back in time, kidnapped endangered famous children, and brought them to the 21st century to be adopted into normal families. JB now wants to fix time by sending all of the kidnapped children back to their correct time periods. In Torn, the fourth book in the series, JB sends Jonah (one of the kidnapped children) and Katherine (his sister) to 1611 on Henry Hudson's ship. Jonah has to impersonate John Hudson, Henry's son, to fix a time ripple. While they are there, Jonah and Katherine have to save their friends Andrea (Virginia Dare), Antonio (Walks With Pride), and Brendan (One Who Survives Much), who are kidnapped children as well.
Haddix does a good job depicting the life of Henry Hudson's son during the time that his father was looking for the Northwest Passage. The language of the people in the past is a bit confusing, as is the time travel plot. You definitely need to read all of the books in sequence in order to understand what is going on; you cannot start in the middle. Some of the choices that Katherine and Jonah make are frustrating to readers, but overall this book, as well as the rest of the series, is educational and fun.
Recommended for gr. 5-9. For more information, visit Margaret Peterson Haddix.