In the book Door by the Staircase, Mary is living in an orphanage where almost no one gets adopted. Until Madame Z shows up. Madame Z whisks Mary away from the dreadful “Home for Girls” and takes her to a big house on the outskirts of a strange town full of performers. Mary has a curious spirit burning inside her so when Madame Z tells her not to open the door, she struggles between doing what's right and what she has been told not to do. As she attempts to pick the lock, her hand is bitten and almost devoured as she shrinks against the wall in terror. In addition, Madame Z assigns her to tame a fire breathing horse. She meets Jacob, a magician's son. Scared, but curious, Jacob and Mary want to confide in each other. However, a traitor appears… the stable hand. Will Mary and Jacob be able to stop him before he hurts Madame Z or one of them? Or will he become Mary’s new guardian and force her into a life of terror? Katherine Marsh has created a fast paced, action packed, suspense filled novel. Mary and Jacob’s stories are entwined together in a tale of magic and exploring the true meaning of devotion. Door by the Staircase is an unforgettable story filled with conflict, love, and the ambition to find home.