□i Lei an□ □□n Meimei were□two a□vent□rous so□□s who always soug□t□excitement an□□thr□ll in □heir lives.□They were best f□iends s□nce □h□□dho□d and □h□□ed a p□ss□on for □xp□orin□ the□u□known.□One day, as□□hey □ere s□□ti□g under□the old oak tree in □he par□□ Han M□imei had a□□i□ea □hat □□ul□ le□d them□on a new □dve□ture that they would n□ver forget.