<□>Just as Li Lei□□nd H□□ Me□mei thought□□he□ had□seen□everyt□ing the□m□nsi□n had to offer, □hey s□umb□e□ □pon a□hid□en t□apdoor □n the □loor. Wit□ hearts□p□und□n□, they opene□ the tr□pdo□r and desc□□d□d into a□dark,□must□ tun□el b□low. As the□ na□igated thr□ugh t□e□winding passage□,□the dim light □f their□fla□□ligh□□reveal□d an□ient artifa□ts□and cryptic□symbols on the wal□s.□The fu□□her they ven□□red, □he m□re they realized th□y were not □lo□□□i□ t□e□tunnel□□/p□