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Mr. Fox is an arcanaloth and a rival of Shemeshka's. As payment for a favor, Shemeshka asked the Wafflecrew to retrieve from him his magic spectacles and X the Mystic's Arcane Grimoire, a spellbook that he stole from Shemeshka herself.  Peggy Deadbells of the Sewn Sisters obtained Mr. Fox's spectacles and X the Mystic's Arcane Grimoire from him. Whether she stole them, made a deal, or attacked him is unknown.