Open Library
Mystery
Every answer hides another question.

Dead woman's shoes
Kaye C. Hill

Secret of the Seventh Son
Glenn Cooper
Milenio 3
Iker Jiménez Elizari
A Ghost Among Us
Debora , ElizaBeth Hill
Death in duplicate
Valerie Wolzien
Mrs. Jeffries and the Best Laid Plans
Emily Brightwell
Easy as One, Two, Three
Phillip DePoy
Relics of the Dead
Ariana Franklin
Way of Escape
Ann Fillmore
The Hardy boys
Leslie McFarlane
The Fall of the House of Usher and Other Tales
Edgar Allan Poe
The Clerk's Tale (Dame Frevisse Medieval Mystery)
Margaret Frazer
To Davy Jones Below (Daisy Dalrymple #9)
Carola Dunn
Merry, Merry Ghost
Carolyn Hart
Death in Hyde Park (Robin Paige Victorian Mysteries, No. 10)
Robin Paige
Erased From Memory
Diana O'Hehir
The Complete Sherlock Holmes [1/2] (Adventures of Sherlock Holmes / Hound of the Baskervilles / Memoirs of Sherlock Holmes / Study in Scarlet / Sign of Four)
Arthur Conan Doyle
Solomon's Jar
Alex Archer
The Berenstain Bears and the Missing Dinosaur Bone
Stanley and Janice Berenstain
A Novel Murder
Elizabeth Penney