<p>Lily examines Cinderella's file and creates the Cinderella Theorem. Then she investigates the Candlemaker's Daughter and discovers an important clue.</p>

The Cinderella Theorem: Chapter 16: Don't Eat Dulcita's Mirror

Listen to author Kristee Ravan read her book series one chapter at a time.

15 year old Lily Sparrow loves factual, mathematical logic. So when her mother confesses that Lily’s deceased father is (a) not dead, (b) coming to dinner, and (c) the ruler of a fairy tale world accessible through the upstairs bathtub, Lily clings to math to help make sense of this new double life. Lily finds herself being pulled into a mystery involving an unhappy Cinderella, a greasy sycophant called Levi, and a slew of vanishing fairy tale characters. Can Lily save her new friends before they vanish forever?