Sonja contines on walking in the Waterfall. She looks down at the water and sighs.

"I missed swimming at the sea...But...I guess this will do." Sonja dives into the water, coming up as a Mermaid. Sonja swims around, singing a beautiful song. As Sonja sings and swims and ducks down from seeing a spear. Undyne shows herself before sending out a lot of spears. Sonja swims really fast which all Mermaids that they can swim fast. Sonja leaves Undyne out of the dust and hides underneath the docks. Undyne soon leaves which Sonja sighs in relief. Monster Kid shows himself which he's shocked about what Sonja is.

"You noticed huh?" said Sonja as she lifts up her turquoise tail. 

"Wow, you look amazing! What are you?" asked Monster Kid.

"I'm a Mermaid." Sonja told.

"A Mermaid? Wow..." Sonja smiles before diving underwater.

"Where are you going?" Sonja pops her head out of the water.

"I'm heading further through this area but see you later." Sonja sinks her head in the water, swimming off. Sonja swims and sees Sans by the telescope.

"hey, kid!" Sonja waves at him. Sans walks to Sonja, bending down.

"wow, I gotta say kid you look beautiful like this." Sonja blushes and smiles.

"Thanks, Sans." Sonja holds onto Sans' hand while staring at each other.

"So what are you doing, Sans?" Sans walks to the telescope.

"I was getting into the telescope business but do you want to use it?" Sonja nodded as she gets out of the water, drying off her tail with her powers. Once she has her legs back she walks to the telescope and looks through it. There is a red dot when she's looking through it. When she's done she's left with a red ring around her eye which Sans snickers at her.

"huh, you aren't satisfied? don't worry, I'll give you a full refund." Sans winks at Sonja which she has a annoyed expression before smiling at him. Sans smiles back as Sonja leaves him. She left something for him which it's a blue sea flower behind Sans' hoodie. Sans smiles at the flower as he looks over Sonja walking further through Waterfall.

(Another chapter done. I hope you like it and I don't own anything.)