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Luigi and the Toads then proceed reunite the pieces, restoring the Dark Moon and returning the ghosts to their friendly selves. After Luigi defeats King Boo, the illusion dissipates and he frees his brother, Mario, who King Boo had captured. King Boo uses his power to drag Luigi into his own illusion. However, only the Dark Moon piece makes it back to the bunker after it and Luigi are pixelated. After Luigi collects the final Dark Moon piece from the final Possessor ghost, he is summoned back to E. The next five pieces of the Dark Moon are found to be guarded by powerful ghosts known as Possessors in each of these mansions. Gadd removes corrupting energy which gradually causes the fog covering Evershade Valley to lift and reveals new mansions for Luigi to explore. Luigi sets out to recover the pieces and restore the Dark Moon, battling numerous ghosts along the way. Gadd uses a special machine with brushes to scrub the corrupting energy off the Dark Moon piece which clears away a part of the fog and reveals the Gloomy Manor. Gadd in his bunker, he reveals he had found a piece of the Dark Moon, but it had been corrupted by some energy which disrupts its ability to pacify ghosts. Gadd is forced to flee the Gloomy Manor and calls Luigi to help him out once again, bringing the initially unwilling hero to him via a teleportation system known as the Pixelator. However, at some point, King Boo arrives and uses the power of his crown to break the moon into six pieces, which coveres all of Evershade Valley in a mysterious purple fog and turns the ghosts aggressive. Gadd used this opportunity to study his work with several ghosts called Greenies. The Dark Moon resides in the sky of Evershade Valley, and it has the ability to keep all the ghosts that live in Evershade Valley in a peaceful environment. The Dark Moon also causes the eyes of pacified ghosts to have pupils. Prior to the Dark Moon's temporary destruction and after its subsequent restoration, the ghosts of Evershade Valley possess friendly, gentle personalities. The Dark Moon possesses the ability to pacify ghosts and keep them in a peaceful state.
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The Dark Moon takes the form of a large, glowing, purple crystal and is shaped roughly similar to a waxing crescent moon.
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