First published in 1963 and first issued in Fontana in 1966. This copy is the twentyfirst impressed, printed February 1981.
Master sleuth Hercule Poirot has time on his hands: four clocks, all set at 4.13, and all left at the scene on a murder.
In the tidy sitting room, Detective Inspector Hardcastle examines the assembled witnesses for clues - a blind lady, a young secretary and an innocent passer-by.
Poirot must find them first...but will he have time?