未来的征程□□h2>
<□□As □he□se□□c□ continued, crypt□c□clues started □o emer□e□ □ddin□ anot□er □ayer□of□intrigue to the case. Symbols carved int□ tree□, stran□e m□□king□ on rock□, and crypti□ n□□es lef□□beh□nd only deepened the myster□ su□rounding the mi□si□g nine.□Were □hese cl□□s□intenti□n□lly lef□ behind, or□were t□ey simply a product of the □ro□p'□ par□noia an□ un□avel□ng □tate of mind?<□□>