内容简介
AdentistliesmurderedathisHarleyStreetpractice!Thedentistwasfoundwithablackenedholebelowhisrighttemple.Apistollayonthefloornearhisoutflungrighthand.Later,oneofhispatientswasfounddeadfromalethaldoseoflocalanaesthetic.Aclearcaseofmurderandsuicide.Butwhywouldadentistcommitacrimeinthemiddleofabusydayofappointments?Ashoebuckleholdsthekeytothemystery.Now--inthewordsoftherhyme--canPoirotpickupthesticksandlaythemstraight?