!?Ok.. i got this off wikipedia so i dont know if i can rely on it! :


Episode 23:

Bella's eager to ask Will to the end of year party until she sees him asking Rikki. A big misunderstanding occurs which prompts Will to express his true feelings for Bella. Sophie tries to get Zane to change the name of the cafe: "Sophie's".Charlotte comes back to find a way how to get her powers back.

And also episode 25:

Cleo discovers a comet is causing fish to flee the waters around Mako Island. The girls find a way to restart the message in the moon pool and discover the comet will collide with earth. Sophie meets Ryan and with Zane's help they join forces to remove the crystals from the Moon Pool.Charlotte finds a way how to get her powers back but she needs to wait for a full moon.


ANDDD... Episode 26 (pretty shawking)!:

It's a Full Moon Tonight and Charlotte is waiting to regain her powers . Sophie and Ryan damage the moon pool in their efforts to obtain the rare crystals. The girls improvise and use their own brand of mermaid magic to prevent the impact of the comet and a planet wide catastrophe. Rikki, Cleo and Bella graduate with a great surprise waiting for them: the return of Emma. Cleo and Rikki introduce her to Bella, and the mermaid quartet are ready a new phase of their lives, forever bound by the sea and their shared secret,Charlotte earns her powers back and is a mermaid again with one special merman.