Hermione looked over her shoulder, trying to judge how far behind her Bellatrix was, but tripped over the thick carpet and fell sprawling to the floor, her wand tumbling out of her grasp as she opened her hand to break her fall. Her stomach sank as she realised she no longer felt the light optimism and guiding hand of  Felix Felicis.  Determined to make the best of it anyway, she turned and reached for her wand. Out of the corner of her eye she saw a dark figure approaching, which quickly materialised into an all-too-familiar nightmare. Her luck had definitely run out. 