Lane runs the city's underworld. Everyone kneels to her. But when her daughter Emma is hounded to her death by privileged brats at King's Academy—a elite school where money and status buy everything—Lane hangs up her crown and walks onto campus as a substitute physics teacher.
Behind the glasses and the crisp blouse, she is no ordinary educator. The moment she sees wealthy troublemaker Caleb Donahue shove a timid intern teacher into a trash can, Lane steps in and unleashes the kind of justice the school has never seen. One kick sends Caleb flying into the lockers. When his powerful father crashes through the school gates threatening to bury her career, Lane simply smiles and asks him to make the call.
The bullies thought they owned the halls. The principal thought he could cover up the truth. The board thought their money made them untouchable. They have no idea that the woman grading their papers is the most dangerous queen the city has ever feared—and she has come to grade them all.
One by one, everyone who hurt Emma will answer to Lane.