ddd MissMaryMorstancontactsSherlockHolmesforhishelpregardingherfather,captainMorstan,whodisappeared[展开全部]
ddd MissMaryMorstancontactsSherlockHolmesforhishelpregardingherfather,captainMorstan,whodisappeared10yearsago.Sincehisdisappearancesheannuallyreceivesavaluablepearlbypostfromanunknownperson.ThemysteryleadsHolmesanddoctorWatsonintoanintricateplotregardingalosttreasurebelongingtofourconvictsontheAndamanIslands[收起部分]