<□>Just as Li Lei □nd □□n Meimei □h□ugh□ they□had seen every□h□n□ the □ansi□n had to offer, □hey stumbled upon□a hidden□trapdoor in the□floo□. With heart□ pounding, they opened the trapdoor□□nd des□e□ded into a □ark, musty tunnel b□□ow. As they navig□□ed □hrou□h □□e□win□ing□p□ssages□ the □im □ight of th□ir fl□sh□ight reve□led ancient□arti□acts and cryptic □ymb□ls on the walls. The fu□th□r the□ vent□red□ t□e m□re t□e□ □ealized they were not a□□□e in the tunnel.<□p>