May 1951 Issue, ELLERY QUEEN'S MYSTERY MAGAZINE

- The Enemy
  Charlotte Armstrong
  , pp. 3-22
  Mike Russell
- Woman Expert
  Thomas Walsh
  , pp. 41-52
  Cornelius Kerrigan
- It Could Have Happened That Way
  A.A. Milne
  , pp. 53-58
  Colby
- The Affair at the Hotel Splendide
  W.A. Darlington
  , pp. 65-80
  Mr. Cronk
- As Simple as ABC
  Ellery Queen
  , pp. 130-146
  Ellery Queen
- The Lord of Time
  Rafael Sabatini
  , pp. 23-40
- Murder with Music
  Frederic A. Birmingham
  , pp. 59-60
- Because of Soney
  Stewart C. Bailey
  , pp. 81-94
- What a Life!
  J.B. Priestley
  , pp. 121-129
- The Voice of Justice
  Mark Rondy
  , pp. 61-64
- The Under Dog (Part One)
  Agatha Christie
  , pp. 95-120
  Hercule Poirot