Sourcery is a fantasy story set in the fantasy land of Discworld and following the adventures of Rincewind the wizard as he seeks to prevent the rise of a government of powerful magi. The title character, the Sourcerer, or source of magic, named Coin, is guided by his father's malignant spirit to seek revenge on mundane wizards. He is, however, conflicted about his nature as a fountain of magical power. In the end he is redeemed and departs Discworld forever.
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