Seventeen-year-olds Revna, the daughter of a traitor, and Linne, the daughter of a general, must use forbidden magic to fly planes in wartime despite their deep dislike of each other.

Revna is a factory worker, manufacturing war machines for the Union of the North. Caught using illegal magic, she fears being branded a traitor and imprisoned. On the front lines, Linn�e defied her father, a Union general, and disguised herself as a boy to join the army. Their only reprieve from punishment: using their magic in a special women's military flight unit and undertaking deadly missions under cover of darkness. Revna and Linn�e can hardly stand to be in the same cockpit. They need to work together or the enemy's superior firepower will destroy them-- if they don't destroy each other first. -- adapted from jacket