The Black Star is one of the antagonists in Mario & Luigi: Wander in Worlds. It is the brother of the Dark Star from Mario & Luigi: Bowser's Inside Story. In the game, Siled, an evil monk, uses it to plunge the world in black nothingness so no one can see him take the crowns from Princess Peach, Bowser, and Queen Bean. Then he plans to destroy the evil star.

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