Wooo chapter 5 is here. Sorry I took longer then usual to write it. I was out of town ! But I'm back.

Not so proud about it, I wasn't so inspired but I wanted to continue the story. So hope you enjoy !

Sans was walking in circles in the snow, leaving a deep track on the ground. Papyrus was following him, not really knowing what he was up to.

Suddenly, Sans stopped. Papyrus nearly bumped into him.

What is is, brother ?

The small skeleton didn't answer right away. He just realized something about the Underground. He pictured the barrier, closed, impossible to touch. He then thought about the entrance.

Papyrus. The humans. They all fell into the underground, right ?

His brother seemed a bit confused.

Well … yeah, we already knew that.

Sans kept thinking for a little while.

They fell from the surface. So there is a way out !

Papyrus seemed lost.

Oh ! You're right ! There is a hole in the ceiling ! Toriel told me about it once.

But there must be a reason why nobody ever tried to climb there … It's really high, dangerous, slippery, full of cutting rocks … Even I can teleport this distance … And the spell may be active there too …

We won't know if we don't try !

The younger brother showed a reassuring smile.

Let's do this together, Sans.

You never give up, do you ? You should be the soul of determination instead of Frisk.

They both laughed but Sans became serious again.

Okay, let's go. We have to be silent, 'kay ? We must go to the ruins without being noticed, or our plan could fail. If I manage to reach the surface, you will hide somewhere until I return, got it ?

Papyrus nodded slightly, not so sure about letting his brother alone in the outside world.

Sans took his hand, concentrated hi soul on another part of the forest, and blue magic surrounded them. Before they left, they could still here battle or despair sounds. They both wanting to cry and felt guilty. Sans felt like they were such cowards for leaving their friends to struggle alone. But it was for the best.

Fortunately, Flowey didn't seem to notice. They kept going forward, switching from walking to teleporting until they arrived before the awfully big door of the ruins.

Sans looked around carefully, and when he was sure no one was watching, he pushed the door with all his strength. Papyrus helped and soon, the giant piece of wood moved. They quickly went inside and closed it behind them.

Both skeletons were relieved and looked at each other. They've been silent for the past hours, travelling in the Underground, and they felt awkward for it. But at least Flowey haven't seen them. Or they believed so.

Sans, let's keep going. I know you're lazy but it's no time to be leaning around.

His brother was lost in his thoughts. He was really sad he had left everyone down. He kept telling himself he had no choice, but he couldn't bear the guilt. He began to cry.

Oh Sans … Don't cry it's okay. You did what you could.

He hugged him tightly.

I can't Paps … I … I left like a coward … Like a …

Shhh Sans. Stop blaming yourself. You did what you could. And now we will find the human and she will help us ! After all, we are very great.

He smiled with his usual grin. Sans couldn't help but smile too.

Thanks … Okay let's keep going. Frisk awaits us.

They both stood up and kept going. Everything was silent, it was all dusty and creepy. Nobody has ever came there since Toriel became the queen. So it was just … empty.

During the walk, Sans thought about Frisk. He was still worried about her. She may have disappeared, be dead, or very far away ! She could have been back long ago, in the Underground, if she truly cared for them.

He began elaborating theories about her going missing until Papyrus stopped suddenly.

Brother … Is that it ?

What ? Already ?

It's … been hours Sans

The skeleton hadn't realized they walked that far as he was lost in his thoughts – again - .

He looked around. They were in a big cave, darker then the rest of the ruins. In the center lied a bed of flowers, enlighted by the surface light which was coming all the way down there.

Here we are …

But then his eyes widened in horror. On the bed of flowers lied a dead body. A human one.

Paps, don't look !

He pushed his brother around and looked at the corpse. It seemed to be a boy, around Frisk's age when she came all these years ago.

He was wearing a shirt with " bright human " written on it, some long trousers, baskets and some kind of hoodie. Sans felt relieved somehow. He was sad for the guy, but at least it wasn't Frisk.

Why ? Why can't I look ?

Sans sighed.

There's … Somebody dead here.

Papyrus forced his way around his brother and his expression saddened.

Oh no … Poor human …

It must be the one Flowey killed to take his soul … This is really sad but we can't do much about it.

Papyrus didn't answer, his head was lowered.

Don't be sad Paps, we will save our friends. And no human child will suffer anymore.

His brother forced a little smile on his face.

I sure hope so.

Sans looked up and walked until he reached the center of the room. He tried to concentrate and felt the presence of the spell lying just above his head.

No wonder nobody has ever managed to escape … This damn spell is all around !

He felt desperate. Now they were really trapped here.

He punched a pillar lying next to him.

WHY ? Why …

Papyrus came over and tell him with a soft tone.

You can't give up. Frisk was determined to save us ! We have to be determined too.

Sans relaxed himself a bit and thought about his brother's words.

That's it ! I may have an idea.

He went next to the dead human and whispered :

Sorry buddy …

He then took his clothes and took them as his own.

Sans ? What are you doing ?

I think I may have an idea. Determination … It will help me. I may not have as much as Frisk had, but with something human on me, it could help !

That's … crazy.

Determination !

What.

Hum … Nevermind. I'm putting more backbone into it, you see ?

Sans …..

What ?

I can't stand you anymore.

But he was smiling.

I think it could work. I will pass throught it.

Sans … I don't want you to go alone … It's the unknown ! I'm very great, I could help you and …

Paps. You're right. We don't know what's up there. Flowey may not know we're here, so you'll be safer down in the Undergound. I promise I'll be back. At least if I manage to go up there …

Papyrus sighed. When he opened his eyes, he had tears in it.

Please be careful … I'll be waiting for you I promise. Just …Come back if Frisk isn't there … We'll find a solution together …

Yeah.

He hugged the tall skeleton for a while. No sound could be heard except for the brothers' sobbing.

Sans smiled and looked at the hall. He tried to concentrate. He felt about all the reasons he was there. About Frisk. About that human that died because of Flowey.

He was filled with determination.

What … What is this light ?...