The Circleville Cipher Mystery

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Across
  1. 3. A type of cipher used in the mystery.
  2. 5. A word that describes an intense interest or focus.
  3. 6. What the mysterious messages were called.
  4. 7. A town where the mystery of the Circleville Letters unfolded.
Down
  1. 1. The process of solving the mystery.
  2. 2. To convert a coded message into plain text.
  3. 4. What the letters aimed to do with secrets.
  4. 5. Someone not from Circleville.
  5. 7. A method used to encode messages.