Open Library
Mystery
Every answer hides another question.

Playing God
Sarah Zettel

New York Dead (Stone Barrington #1)
Stuart Woods

Guardian of the horizon
Elizabeth Peters

Imiginary Friend
Stephen Chbosky

The Maid
Nita Prose

Cam Jansen and the Mystery of the Stolen Diamonds
David A. Adler

The Godwulf manuscript
Robert B. Parker

The Murder League
Robert L. Fish

The Sign of the Crooked Arrow
Franklin W. Dixon

A More Perfect Union
J. A. Jance

The Blue Last
Martha Grimes

Cam Jansen and the mystery of the U.F.O.
David A. Adler

Who Goes There?
John W. Campbell

Smile and say murder
Carolyn Keene

Death and the joyful woman
Edith Pargeter

Never Go Back
Robert Goddard

The case of the howling dog
Erle Stanley Gardner

The snake, the crocodile, and the dog
Elizabeth Peters

The Ice Princess
Camilla Läckberg

Strega
Andrew Vachss