Papa Poirot's Puzzle

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Across
  1. 1. Mysterious Affair at _
  2. 3. The last name of the actor who plays Poirot
  3. 5. Lady Edgware wanted to get married to the Duke Of _
  4. 7. Card game played in Cards On The Table
  5. 8. The first name of Bob's owner
  6. 11. The last name of the nurse who's the culprit in Sad Cypress
  7. 12. Which area of London is in the title of the short story where Poirot hunts for a missing cook
Down
  1. 1. The doctor in Roger Ackroyd
  2. 2. The real surname of the killer in Three Act Tragedy
  3. 4. A in ABC Murders
  4. 5. The last name of the dentist who is killed in One Two Buckle My Shoe
  5. 6. Which household object plays a crucial role in After The Funeral (hint: head tilt)
  6. 9. In The Hollow, which animal's sculpture was used to hide the gun
  7. 10. Poirot's _ grey cells