The snack pack entered Waterfall with determination. Waterfall was like a cave with rivers and of course waterfalls.
They encountered the monster kid back from Snowdin Town.
"Yo!" Said Monster kid, "Are you guys sneaking out to see her too?"
"First of all kid," Began Branch, "Who's her? Second, we are not sneaking. We are just passing by."
"Branch!" Hissed Poppy, "Rude!"
"It's fine." Said the kid, "I'm just sneaking to see Undyne!"
"Well, good luck with that!" Said Smidge.
They continued through Waterfall, when they saw Papyrus talking to someone who was wearing an armor and a helmet.
"What is he doing here?" Asked Poppy.
"I don't know." Replied Branch.
The snack pack hid on the tall grass and started to spy on him.
"H... HI, UNDYNE." Began Papyrus, "I'M HERE WITH MY DAILY REPORT... UHHH... REGARDING THOSE TROLLS I CALLED YOU ABOUT EARLIER..."
"Did you fight them?" Asked Undyne who was in the armor.
"Y-YES OF COURSE I DID! I FOUGHT THEM VALIANTLY!" Replied Papyrus.
"Did you capture them?" Asked Undyne again.
Papyrus was silent for a long moment.
"W-W-WELL... NO. I TRIED VERY HARD, UNDYNE. BUT IN THE END... I FAILED."

"Well," began Undyne, "As people say: 'If you want something done right, you do it yourself!' I'll take their souls myself!"
"BUT UNDYNE, YOU DON'T HAVE TO DESTROY THEM. YOU SEE..."
Undyne glares at Papyrus.
"... I UNDERSTAND. I'LL HELP YOU IN ANY WAY I CAN." Papyrus leaves.
"Oh my god." Whispered Poppy.
"We gotta watch out for Undyne." Added Smidge.
They began to walk, when suddenly, Undyne noticed the sounds the were making!
"Who's there?!" She yelled as she summoned her spear!
The trolls stood still, hoping that Undyne wouldn't notice them. Luckily, she didn't and vanishes into the darkness.
The snack pack got out of their hiding place and they realized that Monster kid came out of there as well. He was all exited.
"Yo! Did you guys see the way she was staring at you? That... Was awsome! I'm sooooo jealous! What'd you do to get her attention? C'mon! Let's go watch her beat up some bad guys!" He runs and trips over. He gets back up and runs.
"Let's go." Said Poppy.
"Are you crazy?" Asked Branch, "Undyne is looking for us! Who knows what she'll do to us!"
"Then we better be cautious." Said Biggie.
They continued through waterfall. Filling them with determination!