DISCLAIMER: I DO NOT OWN ANYTHING FROM UNDERTALE

Chapter 5: Soul and Soulless

Sans ran as fast he could with Frisk right behind him. The creature behind them smashed through the boxes and splinters of wood and material was scattered, almost hitting the pair. Frisk was breathing heavily, her eyes wide in panic. She knew they were in terrible danger and that soon the creature, whatever it may be, was getting closer. Concreate and brick walls gave way to crumbling ruins soon enough and the door could be seen. Sans threw a hand up, palm forwards to release his magic onto it and open their way out. Only the door didn't budge much. There was a loud creak and then nothing.

"Well, We're 'Boned'." Sans chuckled nervously and then turned back to see the darkness of the way they had come down. They heard the roars of the beast, soon it skidded into view. It was a skeleton like Sans only its structure was more canine, large as well. The skull looked very familiar as it opened its maw and screeched. Frisk looked at Sans in panic while his eye changed to Cyan.

"Alright mutt! Time to play dead!" He shouted as he once more directed his palm towards the creature. Magic surged through Sans, he frowned in focus. The beast was unfazed by his powers. The skeleton was shocked and looked at his hand and then at the creature.

"No…That can't be…No soul? I can't lock onto it properly!" He looked at Frisk in panic and the Canine beast decided that this was the best moment to strike. Its claws went straight for the two of them. Sans jumped out of the way while Frisk reacted slower. The claws ripped her shirt and caught her shoulder, making her cry out in pain as the beast gurgled in delight because of its success. Frisk went to the ground and rolled away, clutching her injured shoulder. It had been a decade since she had to properly dodge a lethal attack.

"Kid! Are you alright?!" Sans shouted out in alarm as he heard her scream and saw her tumble to the ground, luckily away from the beast. "I-I'm okay!" She shouted back as she stood up. Sans gritted his teeth together and tried something different. Bones came out of thin air and started to form the shape of what was an old tommy gun. Sans grabbed it and held it up at the canine beast.

"Take your 'shots'!" He yelled as the bone gun fired. Magic bones in the shape of bullets flew forward and hit the beasts flack. It roared loud enough to shake the cavern they were in and it directed its attention onto the small skeleton. The canine beast charged forward towards its new prey, eager to tear it apart for attacking it. San saw massive jaws and claws fly towards him, giving him barely enough time to dodge out of the way. Frisk had gotten back up at this point and focused on her DETERMINATION. It filled her up as she opened her eyes slowly. This was a new feeling all over again. As she had grown up so had her powers, her soul was much stronger now, she could take more hits and now deal non-lethal attacks.

"Sans! Be careful! I'm going to try and stop it from moving!" She yelled as she focused on the beast, focusing her power into her voice. Her expression became stern and she lifted up and scolding finger. "Bad dog! Very bad! Look what you have done!" The beast tilted its head at her, in a confused manner like it didn't know what she was doing and Sans looked at her in bemusement.

"U-Um…Kid? I don't think that's going to work…" he looked at the beast which growled at her and charged forwards once more. However, Frisk glared at it and something strange happened. Red energy wrapped around its paws and stopped it in its tracks. The beast struggled to move and growled furiously at being trapped by this human.

"Good work kid, you got him on a leash…" he chuckled. Frisk looked at him and sighed. "Sans, harden your shoulder with magic…" She mumbled. He frowned but did so and then got a punch to the shoulder which actually hurt despite the shield. Frisk grinned before looking at the creature that struggled. Then it suddenly opened it mouth and the sound of energy rushing through it to its maw could be heard. Frisk and Sans jumped out of the way as an orange energy beam fired where they had just been.

"What the hell? Sans, it has the same power as you do!" Frisk yelled in surprise. Sans stood there in shock looking at the creature which struggled in vain to escape. The skeletons eye then went Cyan and he formed bones, ready to strike at the beast. This creature was an abomination in his eyes and it was time it was destroyed.

"Sans! No!" She got in front of the beast. Sans glared forward. "Kid! Out of the way! This thing will not live while I'm here!" He growled. Frisk felt tears grow as she shook her head. It was only one time the Sans had been forced to kill and it was all because of her.

"You are not a killer Sans! Please…Let me deal with this…" Sans looked shocked as Frisk turned around and walked towards the beast…the demon abomination. It snarled and roared in anger but was then silenced as red energy wrapped around it slowly and it began to make a sound that was similar to a purr. The beast crumbled slowly and its eyes closed in the end before it was completely gone.

"K-Kid? What did you do? Are you alright?" Sans asked in concern as Frisk swayed slightly. She was whimpering for some reason. "I killed…it…" She shook her head and slowly she sat shaking slightly. But Frisk had to be sure, she scrambled and brought up her interface. No increase of LV or EXP. Her expression went from upset to confused at this, she had killed it, had she not? It was all so strange. Sans sighed as he saw this too and was about to say something. However, they heard something. A voice. A giggle.

"Oh you two are just so…sickening!" The demonic voice said and Sans found himself wrapped in a black tendril, its energy was all too familiar to them both. Sans shook in fury. Frisk shook in fear. Her 'Twin' if that's what she could be called walked out of the shadows, eyes blazing red. Her form was less filled out than Frisks but she had matured over the decade she had been imprisoned here.

"Chara…You demonic…bitch!" Sans yelled as he tried to the wriggle free from the tendrils with no success. Chara giggled and gave a splitting grin. "Thank you my dear Skeleton…now then Frisk…we are going to play…a game…" Both girls narrowed their eyes at the other. What could Chara be possibly planning?

Sorry It took me awhile but I had a touch of writers' block and personal things. Thank you for reading so far, I hope you enjoy it. Like always, please give feedback and say how I can improve my writing style. (This doesn't mean changes to the story…)