The Missing is a series of fictional young-adult novels written by Margaret Peterson Haddix. It tells the story of famous children from history stolen by futuristic time travelers from their place in time and accidentally sent to the 21st century as babies. They are then adopted by families in the 21st century. Because Jonah is one of the stolen children, he, along with his non-adopted sister Katherine, must help return the missing kids to their rightful places in history and fix time before it is destroyed. The first book in the series, Found, was published on April 22, 2008. The series continued with book titles Sent, Sabotaged, Torn, Caught, Risked (originally intended to be titled Kept), and Revealed. The eighth and final book, Redeemed, was released on September 8, 2015. There are also two ebook short stories, Sought (which takes place before Risked) and Rescued (which takes place between Risked and Revealed). Haddix originally intended the series to consist of only seven books. However, she stated that she had trouble closing out the series in seven books; leading to her decision to write Redeemed. Source: Wikipedia (en)