The ABC Puzzler

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Across
  1. 4. This person died in Andover
  2. 6. item that cust went around selling
  3. 7. Detective solving the murders
  4. 10. Betty Barnard's sister
  5. 11. The city in which the "B" murder took place
  6. 12. Victim of the "d" murder
  7. 14. Where the fourth murder took place
  8. 15. the false murderer/main suspect
  9. 16. Person the "d" murder was meant for
Down
  1. 1. The city in which the "c" murder took place
  2. 2. Language spoken in book aside from English
  3. 3. The woman Franklin Clarke wants to be with
  4. 5. where the book takes place
  5. 8. Murderer's calling card
  6. 9. Sir Carmichael Clarke's brother
  7. 13. Poirot's old friend