Mrs. Which is the oldest of the three celestial beings, and her age lends itself to a depth of wisdom and sense of leadership that clearly distinguishes her from the other two. She has an air of authority and both Mrs. Who and Mrs. Which look to her for ultimate guidance and direction. Though she is the one who the others must follow, Mrs. Which’s mysterious nature is only furthered by her lack of materialization; she usually appears as a shimmer or gleam of light. However, when she first reveals herself completely, she humors the children by appearing in a black pointy hat and dark robes, an obvious nod toward the form of a traditional witch. She is the one who brings both gravity and humor to dark situations, proving herself the essence of balance and trustworthiness. Mrs. Which speaks in slow drawn-out words, evocative of the long and deep wisdom she possesses.