□□□>Just as Li Lei and Han Me□m□i thought they h□d seen □ver□thing the ma□sion had □o offer, the□ s□□mb□ed upon a hidden □rapdoor in□the□floor. With h□a□ts pounding, □h□□ opene□ the trapdoor and de□cended □nto a dark, musty □unnel be□□w□ As they□na□iga□e□ through the wi□d□ng pa□sages, th□ □im □i□ht of t□eir □lashl□gh□ re□e□le□ an□ient art□facts and□cryptic□sy□bo□□ on □he wall□. T□e □ur□her they ventu□ed, t□e□□□r□ they realized□th□y□were □ot □lone in t□e □unnel.□>