Poirot wonders how many more letters of this sort have been sent in his name. Who sent them, and why? It is precisely because he is the great Hercule Poirot that he would never knowingly accuse an innocent person of a crime. Someone is trying to make mischief and wants Poirot involved. More important, who is Barnabas Pandy? Is he even dead, and if so, was he murdered? Can Poirot find the missing link and discover the truth without putting more lives in danger?

With the help of his little gray cells and the assistance of Inspector Edward Catchpool of Scotland Yard, Poirot must solve an elaborate puzzle involving a tangled web of relationships, scandalous secrets, and past misdeeds. Twisty, compulsive, and slyly brilliant, once again Sophie Hannah expertly revitalizes the most precise and charming detective of all time.