``` □nv□stigators l□ar□ed that the group h□d bee□□friend□ f□r years,□but r□□□ntly ther□ h□d been t□nsio□ □mong th□m. □um□rs of disag□e□me□t□ and arguments du□ing the trip b□g□n □o surfa□e□ leading auth□r□ties to speculate □hether fou□ play□w□s□in□olved□ Eac□ membe□ o□ the group ha□ a different st□ry to□tell, and the□i□cons□sten□ie□ in their□accounts only added □o t□□ □ystery of □he □iss□ng nine□第□章 友谊与背叛
□h2□冰冻下的思绪<□□2>