Ready for a trip to the sun-soaked French Riviera? But beware-this "sunny place for shady people" hides dark secrets. In The Riviera Mystery, Marjorie Swallow and Mrs. Jameson embark on a dream vacation aboard the famous Blue Train, only to be swept into a whirlwind of intrigue, deception, and murder.

Invited to stay at the luxurious Villa Beau Rivage, they're surrounded by diamond merchants, film stars, and enigmatic artists. But when a tragic death shatters the party's glitz, Marjorie finds herself drawn into a deadly game where no one can be trusted.

Can Marjorie and Mrs. Jameson uncover the truth? Dive into a world of 1920s glamour, mystery, and suspense. The Riviera Mystery is the fourth book in the 1920s Murder Mystery series.