Agatha Christie 
TUPPENCE AND TOMMY MYSTERIES:

1. The Secret Adversary   ‘22
2. Partners in Crime   ‘22
3. N & M?   ‘41
4. By the Pricking of My Thumbs   ‘68
5. Postern of Fate   ‘73

MISS MARPLE MYSTERIES:
Main Character: Miss Marple, Elderly Spinster
Location: St. Mary Mead, England

1. Murder at the Vicarage    ‘30
2. The Tuesday Club Murders   ’32 (aka: The Thirteen Problems)
3. The Regatta Mystery    ‘39
4. The Body in the Library     '42
5. The Moving Finger    ‘43
6. Mousetrap & Other Stories    ‘50
7. A Murder is Announced     ‘50
8. Murder with Mirrors    ’52  (aka: They Do It With Mirrors)
9. A Pocket Full of Rye    ‘53
10. What Mrs. McGillicuddy Saw    ’57   (aka: 4:50 from Paddington)
11. The Adventure of the Christmas Pudding    ‘60
12. Double Sin & Other Stories    ‘61
13. The Mirror Crack'd    ’62  (aka: The Mirror Crack'd From Side to Side)
14. A Caribbean Mystery   ‘64
15. At Bertram's Hotel   ‘65
16. Nemesis   ‘71
17. Sleeping Murder   ‘76
18. Miss Marple's Final Cases   ‘79

Miss Marple Investigates
Witness for the Prosecution
Blue Geranium & Other Stories
Agatha Christie Mysteries
Thumbmark of St. Peters
Death by Drowning

HERCULE POIROT, Private Investigator Mysteries:
Location: England

1. The Mysterious Affair at Styles    ‘20
2. Murder on the Links    ‘23
3. Poirot Investigates    ‘24
4. The Murder of Roger Ackroyd    ‘26
5. The Big Four     ‘27
6. The Mystery of the Blue Train    ‘28
7. Peril at End House    ‘32
8. Thirteen at Dinner   ‘33
9. Murder on the Orient Express    ‘34
10. Murder in Three Acts    ‘35
11. Death in the Air    ‘35
12. The A.B.C. Murders     ‘35
13. Murder in Mesopotamia     ‘36
14. Cards on the Table     ‘36
15. Poirot Loses a Client     ‘37
16. Death on the Nile     ‘37
17. Dead Man's Mirror     ‘37
18. Appointment With Death    ‘38
19. A Holiday for Murder    ’38     aka Murder for Christmas
20. The Regatta Mystery    ‘39
21. Sad Cypress    ‘40
22. The Patriotic Murders   ‘40
23. An Overdose of Death   ‘40
24. Evil Under the Sun    ‘41
25. Murder in Retrospect   ‘43
26. Murder After Hours   ‘46
27. The Labours of Hercules   ‘47
28. There is a Tide   ‘48
29. Witness for the Prosecution & Other Stories   ‘48
30. Mousetrap & Other Plays   ‘50
31. The Underdog and Other Stories    ‘51
32. Mrs. McGinty's Dead    ‘52
33. Funerals Are Fatal    ‘53
34. Hickory, Dickory, Death    ‘55
35. Dead Man's Folly    ‘56
36. Cat Among the Pigeons    ‘59
37. The Adventure of the Christmas Pudding ’60…..CHRISTMAS
38. Double Sin and Other Stories    ‘61
39. The Clocks    ‘63
40. Third Girl    ‘66
41. Halloween Party     ‘69.............................HALLOWEEN
42. Elephants Can Remember    ‘72
43. Hercule Poirot's Early Cases    ‘74
44. Curtain    ‘75

The Jewel Robbery
Ten Little Indians
Ordeal By Innocence
The Incredible Theft
The Love Detectives
Love in the Mews
The Christmas Tragedy