▁captured , ▁they ▁will ▁have ▁to ▁with hold ▁all ▁knowledge ▁of ▁the ▁sea ▁world ▁and ▁her ▁her itage ▁from ▁Mel ody ▁in ▁order ▁to ▁protect ▁her . ▁T rit on ▁toss es ▁the ▁lo cket ▁into ▁the ▁ocean , ▁and ▁a ▁massive ▁wall ▁is ▁built ▁to ▁separate ▁the ▁royal ▁castle ▁from ▁the ▁sea . ▁T rit on ▁assign s ▁Sebastian ▁to ▁watch ▁over ▁Mel ody . ▁▁ 1 2 ▁years ▁later , ▁Mel ody ▁remains ▁una ware ▁of ▁her ▁mother ' s ▁mer ma id ▁her itage ▁and ▁is ▁forb idden ▁from ▁ever ▁going ▁into ▁the ▁sea . ▁However , ▁she ▁has ▁been ▁s ne aking ▁out ▁of ▁the ▁castle ▁regularly ▁to ▁sw im , ▁and ▁one ▁day ▁finds ▁the ▁lo cket . ▁She ▁later ▁returns ▁to ▁the ▁palace ▁for ▁her ▁ 1 2 th ▁birth day ▁party , ▁but ▁has ▁a ▁hard ▁time ▁fitting ▁in ▁with ▁the ▁other ▁children ▁her ▁age , ▁who ▁thinks ▁she ' s ▁strange ▁for ▁" t alk ing ▁to ▁fish ". ▁The ▁party ▁was ▁a ▁dis aster ▁after ▁an ▁accident ▁indirect ly ▁caused ▁by ▁Sebastian , ▁and ▁while ▁A riel ▁tries ▁to ▁comfort ▁her , ▁she ▁sees ▁her ▁name ▁on ▁the ▁lo cket . ▁Mel ody ▁and ▁A riel ▁have ▁a ▁he ated ▁argument ▁about ▁A riel ’ s ▁ref us al ▁to ▁answer ▁her ▁questions , ▁Mel ody ▁ste als ▁a ▁small ▁boat ▁and ▁s ails ▁away ▁from ▁home . ▁Mel ody ▁is ▁discovered ▁by ▁Und ert ow , ▁who ▁leads ▁her ▁straight ▁to ▁M org