Miss Murderer

Mrs. Murderer was once a famous dancer in Lego City, but was caught in an explosion from a camera nearby, and her brain was damaged. Since then, she has raided museums in big cities like Lego City and Ninjago City using a sword and a fan-blade. Her base is in Avant Gardens, but she mostly raids Lego and Ninjago Cities, making her a main enemy of the ninja. She has yet to be stopped.