Season 3 is also a little 'nuts' for the girls, they meet a new girl named Blaire, who may just hold the key to finding out why they are mermaids. She also is obsessed with squirls, and a bit of an air head. The girls decide to re-visit the waterfall, and they loose their powers for a while, they also have their tails popping up at random times. They also find matching necklaces, except for the color difference. All of that, plus Amy has her happy but yet sad 11th birthday.