Open Library
Mystery
Every answer hides another question.
5,627 books

The Sweetness at the Bottom of the Pie
Alan Bradley

The best man to die
Ruth Rendell

The haunted showboat
Carolyn Keene

The Burnt House
Faye Kellerman

Comeback
Dick Francis

Gregor and the Marks of Secret
Suzanne Collins

The Private Patient
P. D. James

The mummy case
Elizabeth Peters

Too Many Cooks
Rex Stout

The Talbot odyssey
Nelson DeMille

Sunday Philosophy Club, The
Alexander McCall Smith

High Citadel
Desmond Bagley

Thief of Time, A Low Price
Tony Hillerman

The Hunter (aka Point Blank and Payback)
Donald E. Westlake

Bolt
Dick Francis

The French powder mystery
Ellery Queen

Asta's book
Ruth Rendell

Guy Garrick
Arthur B. Reeve

Smiley's People
John le Carré

The Missing Chums
Franklin W. Dixon