Spy-school washout Lily just accepted a provisional graduation, and she couldn’t be happier! But there’s more to her new assignment (and her new teacher) than meets the eye.

From defeat comes wisdom. To vanquish Klaus, Team Lamplight must learn from their mistakes — but once they enter enemy territory, the time for mistakes will be over.

The girls receive some advice: “Deceive each other. Trick each other. Improve each other.”