Open Library
Mystery
Every answer hides another question.

The thirteenth pearl
Leslie McFarlane

The mouse who wouldn't play ball
Anthony Gilbert
The Purrfect Murder
Rita Mae Brown
Die Softly
Christopher Pike
Diamonds in the Shadow
Caroline B. Cooney
Murder gets a life
Anne George
Windy City Blues
Sara Paretsky
The Secret at the Seashore
Laura Lee Hope
Be Shot for Sixpence
Michael Francis Gilbert
La isla de los dragones del Reino de la Fantasía
Elisabetta Dami
High Tide
Jude Deveraux
Behind the curtain
Peter Abrahams
The Last Time I Saw You
Liv Constantine
The Loss of the Jane Vosper
Freeman Wills Crofts
The Assize of the Dying
Edith Pargeter
Without due process
J. A. Jance
We interrupt this broadcast
K. K. Beck
Playing with fire
Peter Robinson
The shape of snakes
Minette Walters
Mystery of Smugglers Cove
Leslie McFarlane