Agatha Christie 'ABC murders'

An illustration to my favorite novel of Agatha Christie!

Once in July, a strange letter comes to Hercule Poirot, where anonymous called ABC wants to give him a challenge with the different murders! And soon, the murders will be done in a places with the same letters, as the names of the dead victims! So mr Gastings and famous private detective Hercule Poirot will find the true mastermind and an author of these letters...