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Contributing author on Plan 9 From Halloween, Blood and Badges, The River Terror, and Dead Leaves Fall. All of which are monograph books resulting from Chaosium's annual adventure contests for both Call of Cthulhu and BRP. Jon also wrote a short Call of Cthulhu adventure as a follow-up to The Haunting, (the core adventure in all editions of the Call of Cthulhu rules), titled The Haunted. Jon also wrote a solo choose-your-own-adventure for Call of Cthulhu that was published in Protodimension #9, titled The Lonely Road.

He is JonHook on RPGGeek.
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100 Creepy Rooms
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RPG Item: Age of Cthulhu 9: The Lost Expedition
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Issue: Cephalophobia (Volume 1, Issue 1 - 2014)
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Issue: The Gongfarmer's Almanac (2015 Volume 3)
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Issue: The Gongfarmer's Almanac (2018 Volume 3)
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Issue: The Gongfarmer's Almanac Consolidated Edition (2018)
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Issue: Goodman Games Gazette (Volume 1, Number 6 - Sep 2016)
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Issue: Protodimension (Issue 9 - Summer 2011)
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Issue: Sanctum Secorum (Issue #32 - Feb 2018)
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Published 2018-02-20
Issue: Sanctum Secorum (Issue #39b - Halloween 2018 Appendix N(ightmares))
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Published 2018-10-29
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