Open Library
Mystery
Every answer hides another question.

Jane and the genius of the place
Stephanie Barron

Takeout Double
Susan Moody
Fat Free and Fatal
Sonja Massie
Mother's Day Murder
Leslie Meier
The Alpine recluse
Mary Daheim
Maze of Bones (Graphic Novel)
Rick Riordan
Scared to live
Stephen Booth
Rumpole misbehaves
John Mortimer
The house on the hill
Eileen Dunlop
The Mystery of the Third Lucretia
Susan Runholt
The absent author
Ron Roy
A Date You Can't Refuse
Harley Jane Kozak
Set Sail for Murder
Carolyn Hart
Five Classic Murder Mysteries (Boomerang Clue / Death Comes as the End / Moving Finger / Murder of Roger Ackroyd / Secret Adversary)
Agatha Christie
The Wrong Letter
Walter S. Masterman
Two cats, three tales
Lilian Jackson Braun
Dead men's bones
James Oswald
Mystery and the Making of a Christian Historical Consciousness
T. J. Lang
The story of Ivy
Marie Belloc Lowndes
Crimson Obsession
Mona D. Sizer