As Harry, Ron and Hermione learned in their Hogwarts second-year Herbology class with Professor Sprout, the Mandrake plant is an essential ingredient in antidotes for people afflicted by certain curses. But with a root that resembles a human form, it can be dangerous, too. Pull up on the plant stem nestled in the terra-cotta-style pot of this Christmas tree ornament to hear the Mandrake cry. It's a scream that can be fatal in the Wizarding World! Battery operated.