(Detective) novels & Short story collections

1970's

1974:

Poirot's Early Cases 1974 (British edition)¹ [+ HP and JJ]
Published in the US later the same year under the title Hercule Poirot's Early Cases.

1975:

Curtain: Poirot's Last Case 1975 (British edition) [+ HP]
Published in the US later the same year: American edition.

¹ Captain Arthur Hastings figures in FIFTEEN of the short stories.