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简介：MorseandLewisinvestigatethedeathofLauraPoindexter,anAmericantouristwhoispartofanexclusivetourgroupvisitingOxford.Missingfromherpersonaleffectsisherjewelry,includingtheWolvercoteTonguewhichshewasgoingtodonatetotheAshmoleanMuseum.Thepathologistdeterminesthatshediedofnaturalcauses,butMorsefeelsthere'ssomethingnotquiteright.ThemysterydeepenswhenTheodoreKemp,theAshmolean'sexpertontheWolvercoteTongue,isfounddeadandMrs.Poindexter'shusbandgoesmissing.…