The Clocks
A dead stranger, four extra clocks all stopped at the same time, and a blind woman who says she never made an appointment — it's a genuinely arresting setup. Agatha Christie adds a Cold War spy subplot and the unusual structural conceit of Poirot solving the whole puzzle from his armchair without visiting a single crime scene or witness. That intellectual distance is clever and gives the novel a different register from the usual village mystery. The honest caveat is that Christie fans and critics alike regard this as a minor-tier Poirot: the strong opening loses momentum, the 'witness killed before revealing all' device was already considered a cliché at the time of publication, and Poirot's physical absence makes him feel peripheral for long stretches. Enjoyable for series devotees and puzzle fans, but not the place to start with Christie. Largely clean; fine for teens and adults.