Edonahue
Edonahue asked Kevin Sands:

I have found clues or thing of the like in multiple of your books (the blackthorn key series) and was wondering if A, these clues are connected and B, if they are in all 4 (hopefully five soon?!) books.

Kevin Sands Do you mean the puzzles in the historical notes? Only books 2 and 3 had them, and they're not connected—they refer only to secret codes hidden in those two books.

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