A unique offering from the Queen of Crime. This Agatha Christie Signature Edition features the hero the world-famous author was most fond of – Mr Harley Quin, the enigmatic friend and counterpart of the rational Mr Satterthwaite.

So far, it had been a typical New Year’s Eve house party. But Mr Satterthwaite – a keen observer of human nature – sensed that the real drama of the evening was yet to unfold.

So it proved when a mysterious stranger arrived after midnight. Who was this Mr Quin? And why did his presence have such a pronounced effect on Eleanor Portal, the woman with the dyed-black hair?