What was Agatha Christie's first published book, which was released in 1920?
The Mysterious Affair at Styles
Murder on the Orient Express
The Hound of the Baskervilles
The Hound of the Baskervilles
Murder on the Orient Express
The Murder at the Vicarage
Murder at the Vicarage
The Murder on the Orient Express
The Hound of the Baskervilles
Murder on the Orient Express
The Murder at the Vicarage
Murder at the Vicarage
And Then There Were None
The Murder on the Orient Express
Murder in the Rue Morgue
The Hound of the Baskervilles
A Study in Scarlet
The Murder at the Vicarage
Murder on the Orient Express
The Murder in the Rue Morgue
Arsenic and Old Lace
And Then There Were None
The Mousetrap
Murder at the Vicarage
A Study in Scarlet
The Mystery of the Black Lagoon
The Hound of the Baskervilles
The Murder on the Orient Express
Go Set a Watchman
The Mystery of the Black Cauldron
The Murder at the Vicarage
Murder on the Orient Express
And Then There Were None
The Murder in the Rue Morgue
The Mousetrap
Murder in the Cathedral
Death on the Nile
All Creatures Great and Small
Go Set a Watchman
The Murder at the Vicarage.
Witness for the Prosecution
The Hound of the Baskervilles
The Mystery of the Black Lagoon
The Murder on the Orient Express
Murder at the Vicarage
And Then There Were None
The Mousetrap
Murder on the Orient Express.
The Murder at the Vicarage
Dead Man's Chest
The Mystery of the Black Cauldron
The Mysterious Affair at Style
Murder by Decree
Death on the Nile
Go Set a Watchman
Murder on the Orient Express
Poirot
The Mousetrap
Murder in the Cathedral
Murder at the Vicarage.
The Hound of the Baskervilles
The Murder at the Vicarage.
And Then There Were None
Dead Man's Chest
The Murder on the Orient Express
The Murder on the Orient Express.
The Mysterious Affair at Style
The Mystery of the Black Lagoon
Murder at the Vicarage
The Mystery of the Black Tom
The Murder at the Vicarage
Go Set a Watchman
Murder by Decree
Murder on the Orient Express.
Poirot
The Mousetrap
Arsène Lupin
Murder on the Orient Express
Death on the Nile
The Murder at the Vicarage Hotel
Dangerous Liaisons
I, Claudius
Dead Man's Chest
Miss Marple's Diary
The Mysterious Affair at Style
The Hound of the Baskervilles
Go Set a Watchman!
The Murder on the Orient Express
A Study in Scarlet
The Murder at the Vicarage.
Murder at the Vicarage.
Go Set a Watchman
I, Claudius, Part 1
Poirot
The Murder on the Orient Express.
The Mousetrap
Murder in the Cathedral
The Murder at the Vicarage
Murder by Decree
The Mystery of the Black Tom
The Mystery of the Black Lagoon
And Then There Were None.
Murder at the Vicarage
Dangerous Liaisons
I, Claudius
Murder on the Orient Express.
Murder on the Orient Express
Miss Marple's Murders
Miss Marple's Diary
The Mysterious Affair at Style
Dead Man's Folly
Go Set a Watchman!
Poirot
Death on the Nile
The Mousetrap
I, Claudius, Part 1
The Hound of the Baskervilles
The Murder on the Orient Express
Red Rackham's Treasure
I, Claudius, Part I
Miss Marple's Poison Garden
The Mystery of the Black Cauldron
And Then There Were None.
Dangerous Liaisons
The Murder at the Vicarage.
A Study in Scarlet
The Murder at the Vicarage
I, Claudius
I, Claudius, Part 2
The Secret of the Unicorn
The Murder on the Orient Express.
Miss Marple's Murders
Murder at the Vicarage
Dead Man's Folly
Poirot
Murder on the Orient Express
The Mystery of the Black Lagoon
The Mysterious Affair at Style
The Mousetrap
The Mystery of the Black Tom
I, Claudius, Part II
Murder in the Cathedral
Miss Marple's Diary
Go Set a Watchman!
And Then There Were Fewer
I, Claudius, Part One
Murder by Decree
Death on the Nile
I, Claudius, Part 1
The Hound of the Baskervilles
Witness for the Prosecution of Crime
I, Claudius, Part I
The Mysterious Case of the Pink Panther
And Then There Were None!
And Then There Were None.
The Murder on the Orient Express
I, Claudius, Part 2
Poirot
Miss Marple's Poison Garden
I, Claudius, Wasp
And Then There Were Few
The Mousetrap
The Murder at the Vicarage.
The Murder at the Vicarage
Dead Man's Folly
Miss Marple
Miss Marple's Murders
Miss Marple's Poison Shop
The Mysterious Affair at Style
I, Claudius, Part II
Miss Marple's Poison Book
Go Set a Watchman!
Murder on the Orient Express
And Then There Were Fewer
I, Claudius, Part One
Miss Marple's Poison
The Murder at St. Elmo
Go Set a Watchman.
Miss Marple's Secret Diary
Miss Marple's Diary
A Study in Scarlet
Miss Marple's First Case
Red Rackham's Horseshoe
The Hound of the Baskervilles
Miss Marple's Poison Pen
Murder in the Cathedral
Go Set a Watchman in the Dark
Dangerous Visions
And Then There Were None!
And Then There Were None.
The Mysterious Case of the Pink Panther
I, Claudius Caelum
Poirot
A Study in Scarlet and Black
I, Claudius, Part I
The Mousetrap
The Mystery of the Black Tom
And Then There Were Few
I, Claudius, Wasp
I, Claudius, Part 2
Miss Marple