The Disappearance of Mr Davenheim(2012)
(A book in the Short Stories series)
A Novella by Agatha Christie
Mr. Davenheim, a wealthy financier, leaves his home to mail a letter, then fails to return. The story fills the newspapers and intrigues Hercule Poirot, who challenges Inspector Japp with the claim that he can solve the case before the police, and without leaving his flat.
May 2012 : USA, Canada Kindle edition