Book 6 of the Shadow Children series
by Margaret Peterson Haddix (5th+)
In the middle of the night the population police show up at Niedler School, forcing all of the students into trucks and telling them that they are going to work for the government from now on in order to get food. Matthias and Percy along with the young Alia are among this group of students. They know that they must get away but an accident leaves them injured and stranded. Matthias is the only one who can get help but he soon finds himself an unwilling member of the Population Police. Can he stick it out and use his newfound position to help the cause of the third children and their road to freedom? Read book 6 of the Shadow Children series, Among the Enemy, to find out.