Open Library
Mystery
Every answer hides another question.

The Hound of the Baskervilles
Arthur Conan Doyle

Преступление и наказание
Fyodor Dostoyevsky
The Adventures of Sherlock Holmes [12 stories]
Arthur Conan Doyle
The Man Who Was Thursday
Gilbert Keith Chesterton
The Mysterious Affair at Styles
Agatha Christie
The Secret Adversary
Agatha Christie
The mystery of Edwin Drood
Charles Dickens
His Last Bow [8 stories]
Arthur Conan Doyle
Heart of Darkness
Joseph Conrad
The Riddle of the Sands
Erskine Childers
Greenmantle
John Buchan
Basil
Wilkie Collins
Harry Potter and the Philosopher's Stone
J. K. Rowling
The Law and the Lady
Wilkie Collins
Trent's Last Case
E. C. Bentley
Prester John
John Buchan
Whose Body?
Dorothy L. Sayers
The Black Robe
Wilkie Collins
Murder on the Links
Agatha Christie
Armadale
Wilkie Collins