Open Library
Mystery
Every answer hides another question.

Cam Jansen and the Birthday Mystery
David A. Adler

Mystery of the Desert Giant
Franklin W. Dixon

Frog in the Throat
Elizabeth Ferrars

The Secret at the Seashore
Laura Lee Hope

Cam Jansen and the Mystery of the Carnival Prize
David A. Adler

The Case of the Left-Handed Lady
Nancy Springer

Carioca Fletch
Gregory Mcdonald

Dead silver
Neil McMahon

The Last Time I Saw You
Liv Constantine

The phantom of Pine Hill
Carolyn Keene

What's So Funny?
Donald E. Westlake

Breach of duty
J. A. Jance

The black cat
Martha Grimes

Deuces Down
George R. R. Martin

Without due process
J. A. Jance

The Bombay Boomerang
Franklin W. Dixon

Murder most mellow
Jaqueline Girdner

Blind eye
Stuart MacBride

Cam Jansen and the scary snake mystery
David A. Adler

La isla de los dragones del Reino de la Fantasía
Elisabetta Dami