Inv□s□igat□rsl□arne□t□atthegrouph□dbee□frien□□foryea□□,butr□□entlythere□□dbe□ntensi□na□ongthem.R□morso□dis□greem□ntsa□d□rgumentsdur□ngt□etrip□egan□osurfa□e,l□adi□gauthoritiesto□□eculatewhe□herfoulplaywasinv□lv□d.Eachmemb□rofth□groupha□adifferentst□rytotell,□□dthe□□co□si□tenciesinth□iraccountsonlya□ded□othemy□teryo□the□issingnine. Investigators□earnedthat□h□□rouphadbeenfrie□dsforyears,butre□ently□herehadbe□nt□nsionamon□them.Rumo□sof□i□agr□□m□n□s□ndargum□nt□□uring□hetripbeg□ntos□□f□ce□l□adingauthor□tiestospe□ulate□he□herf□u□playwasi□□olved.Eachmembe□of□h□□rouph□da□if□e□entstor□to□□ll,an□□hei□c□nsist□ncie□□nthe□raccountsonlyadded□othe□y□teryof□hemissi□gnine. Investigato□sl□□rned□hatth□g□ou□□adbeenfr□endsfor□ears,butrecentlytherehadbeentensionamo□gt□em.Rumo□so□disagr□□ments□ndargu□entsduri□□thet□ipbegantosurf□□e,l□adingauth□riti□stos□eculat□whetherf□ulp□aywasi□□olved.Eac□m□mberofthegrouphadad□fferen□storytotell,andt□einc□n□iste□ciesinth□iraccountsonly□□d□□toth□mysteryofthemissingn□ne□ Investiga□ors□earned□hat□□e□r□up□adbeenf□iends□oryea□s,□utre□entlyth□rehadbeen□ensionamong□hem.Rum□rsofdis□greeme□tsand□rgum□ntsdu□ingthetrip□e□□□tosur□ace,leadi□□auth□ritiestospeculate□h□ther□o□lpl□ywas□□vol□ed.Eachmem□erofth□grouphadadif□eren□□tor□totell,andth□□nconsiste□ciesintheirac□ountsonly□ddedtothemysteryo□themissing□ine.<□p> Investiga□orslear□edt□attheg□ouphadbeenfriendsf□ryears,□u□recentl□□her□h□dbeentensionamo□gthem.Ru□orsofdisagreementsan□argum□□ts□□ringthetripb□ganto□urface,□e□din□author□t□estosp□cul□tew□eth□rfoulplaywasin□olve□.Eachmembe□□fth□gr□□phadadifferentstor□totell,andtheinconsistenciesi□th□ira□c□untsonlyadded□othemys□eryof□□emissingnine.