A Goodreads user
asked:
Who...actually wrote this book? I can only find that it's presumed to be Arin Hanson, but it's just credited as a book by 'the Game Grumps' underneath the pseudonym.
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Ghost Hunters Adventure Club and the Secret of the Grande Chateau,
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Breashl
From what I can gather people are thinking that it might be Vernon. But, there's no definitive answer, at least not yet.
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