Sandy Petersen

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2 - Call of Cthulhu: Horror Roleplaying in the Worl …

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Petersen's Field Guide to Cthulhu Monsters (Call of …

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Field Guide to Creatures of the Dreamlands

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Call of Cthulhu - Miskatonic U. Graduate Kit

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Gloranthan Bestiary: Creatures From Around the Worl …

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Shadows of Yog-Sothoth: A Global Campaign to Save M …

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Fragments of fear: the second Cthulhu companion (Ch …

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Ghostbusters

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Runequest = Gloranthan kultit : laajennusosa Runequ …

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Stormbringer Companion