Don’t know if this was discussed or not, but: In the little mermaid 3, it was revealed that Ariels mother, Athena, was killed when a pirate ship crashed into her. Perhaps that’s why the mermaids attacked. They are good sometimes but recognize Hooks ship and were getting revenge for when he killed their queen. Just thought id say.
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"I could have the giant duck as my steed!" --Daniel Radcliffe
Keeper Of Tamara's Taser , Jafar's Staff, Kitsis’s Glasses , Ariel’s Tail, Dopey's Hat , Peter Pan’s Shadow, Outfit, & Pied Cloak,Red Queen's Castle, White Rabbit's Power To World Hop, Zelena's BroomStick, & ALL MAGIC