Inve□tigat□rsle□rnedth□□th□group□□d□eenfrie□d□fo□yea□□,□utrecen□lytherehadbeent□nsionamongthem.□umor□ofdisagre□mentsa□dargume□tsduringth□tripbegantosurf□□e,leadin□□u□hor□tiestospeculat□wheth□r□□ulplaywas□□volved.Each□emberofthe□rouphadad□ff□rents□oryt□te□l,and□heinco□siste□ciesinth□ira□countsonlya□dedtothemyster□ofthe□i□si□g□ine. In□est□gator□learn□□thatthegrouphad□eenfriendsfor□ea□s□bu□recentl□the□ehadb□entensionamo□gthem.Rumorsofd□□agreementsandargum□□tsduringthetr□pbe□□ntosurface,lea□in□a□thoriti□st□speculatewhe□he□foulplaywas□nvolv□d.Eachmem□erofthegrouphadadifferen□s□ory□otell,□ndthe□ncons□stenciesi□theirac□□□ntso□lyaddedtot□emyst□ryofthem□ssing□ine.<□□> Investigat□rs□ea□nedthatt□egrou□ha□bee□f□iend□□or□ea□s,butr□c□□tly□herehadbeentensionamongthem□R□mo□sofdisagreeme□tsandargumentsduringthetrip□e□antosurfa□e,lead□ngauth□ritiestospeculatewh□therfou□play□a□□nvolved.Eachm□mb□r□□t□□□rouphadadi□feren□storytotell,andtheinconsist□nc□□si□th□i□a□counts□nly□ddedt□themys□eryofthemi□□ingn□□e□ I□ve□tigator□l□arnedth□tthegroupha□be□n□□iendsf□□years,bu□recen□□y□herehadbeentensio□a□on□the□.R□morsofdisagreementsanda□gumen□sduringthetripbegantosur□a□e□le□din□auth□ritiestos□eculatewhether□oulpla□□a□in□ol□ed.E□c□mem□□rofthegrouphadad□□fer□nts□orytotell,□ndthein□onsistenciesi□theiracc□untsonlyaddedto□hemysteryofthe□i□singnine. In□□s□i□ator□learnedthatthe□rou□hadbeenfriendsf□ry□ars,butrecentlythere□a□bee□te□s□o□amongthem.Rumors□f□isagreementsandargum□nts□uringthetripb□□antosurface,□ead□ngauthorities□□specu□□tewhe□h□□foul□l□ywas□n□ol□ed.□achmemberofthegro□phadadiff□rentstor□□otell,and□heinconsisten□i□sinthe□racc□untsonlyadd□dtot□e□y□teryofthe□iss□ngnine.