Books like Third Girl

Third Girl by Agatha Christie reads as wry, accessible. These 12 books share its genome — matched by how they actually read, not just their shelf label.

Whose Body?

Dorothy L. Sayers

Both explore murder & secrets

83% genome match

After the Funeral

Agatha Christie

Both explore murder & secrets

84% genome match

Enter a Murderer (Roderick Alleyn #2)

Ngaio Marsh · 1935

Shares the unreliable thread

70% genome match

The beckoning lady

Margery Allingham · 1955

Shares the unreliable thread

70% genome match

A Mind to Murder

P. D. James · 1963

Both explore psychology & secrets

64% genome match

The Case of the Curious Bride

Erle Stanley Gardner · 1934

Shares the unreliable thread

76% genome match

The Killings at Badger's Drift

Caroline Graham · 1987

Shares the unreliable thread

70% genome match

Detection Unlimited

Georgette Heyer · 1953

Shares the unreliable thread

70% genome match

The Cornish Coast Murder

John Bude · 2014

Shares the unreliable thread

69% genome match

Beast in View

Margaret Millar · 2015

Shares the unreliable thread

69% genome match

The Westing Game

Ellen Raskin · 2003

Shares the unreliable thread

79% genome match

Out of the blackout

Robert Barnard · 1984

Shares the unreliable thread

69% genome match