Found by Margaret Peterson Haddix

A plane appeared at an airport. No one saw it arrive, except for Angela DuPre. It appeared out of nowhere, and when she boarded the plane to look for the pilot or the passengers, she discovered that there were no adults on board. Just 36 babies. Thirteen years later, Jonah and Chip both get strange messages in plain white envelopes saying, "You are one of the missing." One of the missing? Missing from where? And then Jonah's parents take him and his sister Katherine to the office of FBI agent James Reardon, who might have new information about Jonah's adoption. While they're there, Katherine takes pictures of some strange documents on Reardon's desk, documents titled "Survivors" and "Witnesses." Jonah's and Chip's names are both on the Survivors list. But what did they survive?

Found is the first book in The Missing series by Margaret Peterson Haddix. It's the kind of book that drags you along for the first 150 pages, and then all of a sudden, everything's happening too quickly. You can't keep, and it feels like everything's going too fast.

Found is an MCBA book for 2009-2010.