After the encounter with the talking flower, the kid now known as Frisk ran up ahead.
While Sonic had to catch up with him.
"Kid, wait up!" Sonic called out to Frisk as the kid was up ahead on some stairs.

The child looked down, seeing the blue hedgehog.
"I'm sorry about that Mr. Blue..." Frisk sighed, heading down the stairs to meet Sonic.
"But that flower creeped me out! He knows my name!" Frisk continued.

Sonic sighed, looking around the place.
"Where are we anyway?" He asked the kid.
The Blue Blur looked at the kid, who was trying to think.

"I think we're inside Mt. Ebott!" Frisk called out, pointing their finger up the ceiling.
This confused Sonic a little bit, scratching his head.
"Alright... If you say so..." He said, grabbing Frisk's hand so the kid won't get hurt.

"... So it's like this?" Frisk asked to himself as he pushed a few buttons on the floor.
The door in front of them opened.
"A puzzle... Nice idea if you don't want intruders..." Sonic said as they went to the next room.

As they walked, Frisk told Sonic about the legend of Mt. Ebott.
"So you're saying that people disappear in this mountain?" The blue blur said as they walked.
The child nodded. "So they might fall down to this place that might be booby trapped?" Sonic asked himself.

There were a few twists and turns in the place, and some creatures looking miserable.
Frisk went to a frog-like one. "So what's wrong?" The blue clothed child asked.
Sonic heard a few "Ribbits", but that was it.

Frisk stood up again, and told Sonic this.
"He said that they're depressed that the 'scary' lady hasn't come out of her house lately." Frisk told Sonic.
Sonic was surprised, Frisk got that out a few 'Ribbits'!

Later...

"Okay..." Sonic sighed annoyed. There was a path blocked by spikes!
Frisk looked at the sign above them.
"Mr Sonic, the sign said that we have to follow the path we previously took." Frisk told the blue blur,

Sonic did as he was told. A few step took them, and the spikes went inside the holes.
"Well that's good." Sonic gladly said.
And went up ahead to get out of Mt. Ebott.

But... There was a new object blocking the way.
A... Ghost? Seriously, a ghost was blocking the way!
Sonic wanted to wake up the ghost.

"Zzzzzz..." The was saying... Trying to pretend to sleep.
"Hello Mr Ghost." Frisk called out to he see-through being.
The ghost looked up. Seeing the hedgehog and human.

"Oh.... I'm sorry!" The ghost apologized, getting a bit teary-eyed.
"Was I bothering you?" The ghost asked them.
"Um... No?" Sonic told the ghost, who starting to cry.

"Don't cry Mr. Ghost!" Frisk told the spirit.
"You must not have a lot of friends! So I can be yours!" He told him.
The Ghost smiled. "Thank you... My name is Napstablook." The ghost told them as he went off ahead.

"That was nice of you." Sonic told Frisk as they were walking.
The kid smiled. "Thank yooou...!" Frisk yelled out as he fell down a hole.
"Frisk!" Sonic called out, worried that the kid might be hurt.

On the bottom of the floor, Frisk landed on a pile of leaves.
A little dizzy, but okay.
"Are you okay!?" A bug creature asked the human.

Frisk looked at the bug who gave him a worried loo.
"No problem, I'm..." Before Frisk could complete his sentence, the bug creature flew of crying.
"Frisk!" Sonic's voice called out. "Are you alright!?"

Frisk looked at the leaf pile, and up to where he fell down. (Again)
"I'm alright!" The child called back, heading to the door to the right.
He came back upstairs, at the other side of the trap.

"Thank goodness you're alright!" The blue blur called out.
Frisk waved at the blue hedgehog.
"There is a hole right there!" Frisk called out to him. "You have to find another..."

Sonic jumped up, and landed right next to Frisk.
"Way?" Frisk finished his last word. Stunned from Sonic's jump.
"Hey, let's go and find a wayout alright?" Sonic told him, heading further in the underground.

There were a few more puzzles along the way though, which Sonic was annoyed by.
But they did me Napstablook again... Who fell down the a while after a while.
"Aren't you a ghost?" The blue blur asked. "I forgot... Sorry..." He apologized again.

And at last, They saw ome thing new, a tree.
And in front of it.... A house.