I’ve read a few Agatha Christie novels in my day, notably And Then There Were None, but I don’t recall reading anything featuring her famous detective.
I’ll admit, I’m not overly familiar with Hercule Poirot, the famed Belgian detective at the center of Agatha Christie’s sprawling series of mystery novels.
That’s a mystery for you to unlock, though I wager most will just wait for Branagh’s Death on the Nile.
There’s even an anime based on the character titled Satomi Kōtarō, Agatha Christie’s Great Detectives Poirot and Marple that ran from 2004-2005.