Arlecchino is the Fourth of the Eleven Fatui Harbingers, known as "The Knave". She is the current director of the House of the Hearth and is addressed as "Father" by the children under her care. She is recognized for her cold efficiency, absolute authority, and pragmatic approach to her duties. Unlike many other Harbingers, she does not indulge in excess or unnecessary cruelty. She executes her responsibilities with precision and serves the Tsaritsa's goals with calculated purpose.