The Return of Gaster (Gaster Blaster Sans)
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[[UNDERTALE SPOILERS!!]] After frisk had done the pacifist run many times, something gone wrong... Flowey never showed up in the end. So frisk lived in the underground with their friends and they never came to the surface. But what had happend with flowey? Why is sans acting so strange all of a sudden? Why does frisk se a mysterious man sometimes? Find out by reading the book.
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