In Peril at End House, we see that Poirot is as susceptible to the charms of a beautiful woman as Hastings – with his judgement momentarily clouded as he works to solve the crime.

It is hard to speak of The Mysterious Mr Quin without employing the term ‘atmosphere’, and, as Mr Quin himself proclaims, ‘Atmosphere is always valuable’.

Set in St Mary Mead, a quintessentially English village, this rural idyll is shown to be little more than a veneer as petty rivalries, whispered secrets and poisoned pens serve to divide the community.