内容简介
MissMarplesensesdangerwhenshevisitsafriendlivinginStoneygates,arehabilitationcenterfordelinquents.Herfearsareconfirmedwhensomeoneshootsattheadministrator.Althoughheisnotinjured,amysteriousvisitorislessfortunate—shotdeadsimultaneouslyinanotherpartofthebuilding.Purecoincidence?MissMarplethinksnot,andmustuseallhercunningtosolvetheriddleofthestranger’svisit…andhismurder.