Shortly after coming up with their plan, Rikki and Quinn were at one of the volcanoes trying to close it off.
"Alright, this is far hotter than I thought it would be," thought Quinn.
"There, we actually managed to calm it," she thought as the magma began to cool and the opening of the volcano started to solidify back into solid rock. She then noticed her mom pointing at the surface.
"Alright, that went well," said Rikki once their heads were above the water.
"Yeah, but it'll take hours to calm down all of these since it takes both of us for just one, and I don't know how much of this we can take seeing how worn out we are with just one," said Quinn.
"Then let's not waste too much time talking," said Rikki before going back under the water. Meanwhile, at the moon pool.
"There's nothing here," said Cleo as she looked around the walls in case something may have been written on them by Quinn while under the control of the moon.
"I really wish there was a way for the moon to explain all of this to us," said Casey before kicking the cave wall.
"Uh, I think the cave did not like that," said Jasmine as another quake hit.
"Look!" said Emma while pointing at the moon pool which was bubbling while glowing at the same time.
"Whoa," said the girls as the pool showed a ring of volcanic rock stopping a large wave heading for the island that would destroy the whole thing if it were to hit. It also showed Quinn's face.
"The volcanoes aren't causing the tsunami, they're meant to stop them," said a shocked Emma.
"We need to get to Rikki and Quinn to get them to stop, now!" said Cleo before the three jumped into the moon pool to swim out to the ocean.