MYSTERIES OF THE RIVIERA. London, Cassell & Co., 1926 [popular edition].

Short story collection containing:

• The Affair of the San Mona Spring
  
• The Injured Husband
  
• The Curious Disappearance of Mr. James Westthrop
  
• The Siren Voice
  
• The Siren Voice (continued)
  
• The Tortoiseshell Princess
  
• The Deliverance of Mrs. Kinsey
  
• The Yellow Disk
  
• The Inverted Message
  
• The Last Quest