The Case of the Discontented Soldier(2012)
(A book in the Short Stories series)
A Novella by Agatha Christie
When civilian life proves too dull for Major Wilbrahams, he contacts Parker Pyne to escape his boredom. Pyne's assistant arranges a chance meeting with the beautiful Freda Clegg and the two join forces, but on leaving for Africa they encounter more than they had bargained for.
May 2012 : USA, Canada Kindle edition