Taryn Marler

The Moon Pool is damaged after the crystals have been harvested; a comet heads for Earth.

Rikki receives counterfeit money at the cafe and is held captive by criminals on a boat; Bella and Cleo are forced to reveal the trio's secret to Will so they can rescue Rikki together.

Bella wants to ask Will to the end of the year beach party, but thinks he has asked Rikki instead.

Will discovers that Bella is a mermaid.

Will is more interested in Bella as a mermaid than as a person.

Rikki and Bella hide out at Cleo's to protect themselves from a full moon water attack; Bella is kidnapped by a water tentacle; Lewis tries to keep Will away.