The True Knot is a fictional group of psychic vampires from Stephen King's novel, Doctor Sleep. They feed on the psychic energy, known as "steam," produced by children with special abilities, particularly those who possess the gift of shining. The group travels in a RV, seeking out vulnerable children to capture and drain their energy. Members of the True Knot are immortal and can live for centuries, but they must consume steam regularly to maintain their vitality. They are characterized by their cult-like behavior and are led by a powerful figure named Rose the Hat. Their sinister activities create a central conflict in the story.