Harry buried his face into Toriel's fur, making a small sound at the warmth. He could hear the others talking but he was far too tired to really listen. He looked over and saw Frisk sitting on Toriel's other shoulder, their face also resting in the soft fur. After all that'd happened that day, the two were exhausted.
While the two children slept, the adults talked amongst each other. Alphys, Undyne and Mettaton had decided to stay back at the lab, while Alphys worked on Mettaton and talked with Undyne.
"so, why do you think their little thing worked on you but not on alphys' experiments?" Sans asked his father, walking alongside Toriel.
"My theory is, that since their SOULs were technically still intact, and their bodies were in the physical realm, unlike my own, that there was nothing for their powers to fix. That, and perhaps Lily Potter's SOUL did not act to heal them, unlike with myself. However, this is only speculation." Gaster mused, one finger on his chin.
"Either way, I am disappointed in Alphys for doing something like that." Toriel muttered.
"MISS QUEEN, I MUST DISAGREE! ALPHYS WAS DOING IT FOR A GOOD REASON, EVEN IF SHE MESSED UP! BESIDES, SHE'S WORKING ON REUNITING THE FAMILIES! THAT SHOULD MAKE UP FOR SOMETHING." Papyrus spoke up, looking a bit nervous about speaking against the queen.
"That's… true. Thank you Papyrus. For now, let us continue to the castle, we must… speak with Asgore." The goat monster replied.
"My Lady, from what I understand you are upset with him, however, please, remember, that while what he did was cowardly, he had the Underground's best interests in heart." Gaster said, looking ahead.
"True, but he could've gone to the surface after only one SOUL." Gaster bit back a 'Look how well that went last time a monster went up to the surface.' retort at Toriel's words. He was wise enough not to bring it up however. The spirit following them however was not as kind, yelling at his adopted mother. Though no one but Harry, Frisk and Gaster could hear him.
The group made their way through the Underground, Toriel giving a glare to any monster who attempted to ask them anything. As they passed through MTT resort, Toriel gave a disapproving glare to the fact that the fountain had been altered to have a statue of Mettaton inside.
Eventually, they made it to the castle. Walking through the halls Toriel had a nostalgic look on her face. In her old house she walked around, running her hands over several of the objects inside. She peeked into her and Asgore's old room, seeing it just the same as it had been so long ago. She paused outside of Asriel and Chara's room, then refused to go inside.
None of the skeletons made a move to speak to her, merely looking at her with concern in their eyes. Toriel did not give them a glance as she walked down the stairs, not even waiting to see if they followed or not.
They soon came to the hall outside the throne room, and Toriel gently shook the children on her shoulders to wake them.
"We are here my children. The adults need to talk for a while, so you two wait here." She said, patting them on the head.
"But mom! We want to talk too! Besides, we're the ones who are going to help break the barrier so shouldn't we talk as well?" Frisk replied with a pout.
"the kid's got a point. i mean, if they're going to help us out they should have a say." Sans agreed. Looking around, Toriel saw that the other two skeletons agreed, making her sigh.
"Very well. Come." They entered the throne room, where Asgore turned, prepared to make a greeting, only to freeze at the sight of his ex-wife.
"Tori… you came back." He said in a soft voice.
"Do not 'Tori' me Dreemurr.I am only here because I refuse to let you harm these children that are trying to help." The woman replied. Asgore had a sad look on his face before processing her words and seeing the children.
"Hello there. I was… not expecting you. I had heard about a human and a halfling roaming the Underground but I was not prepared for you two so soon. You… wish to help? You DO know what that entails correct?" He asked. Frisk and Harry nodded.
"But we thought there might be another way! 'Cause me and Harry helped get Gaster out of the void or whatever so we thought maybe we could break the barrier!" Frisk yelled, doing a kind of double fist pump.
"A different way? Well, I suppose that is possible. I have not heard of any other way but… you two are willing to try, so I will try as well." The king said with a smile.
"Excellent! I was not sure this would work. My king, I will aide in any way I can." Gaster sighed. Asgore looked at the skeleton and smiled.
"Gaster! My friend, I have not seen you in ages! The children said you were in… a void? I am not sure what they mean but I am very happy to have you here. I am not sure how this will work but-" Asgore was cut off by a vine coming out of nowhere and tying him up, as well as everyone else besides Frisk and Harry. Frisk immediately stepped in front of Harry, looking bravely at the flower that had popped up in front of them.
"You idiots! You think that just because that little shit is here things will just go smoothly? As if! No, I won't let this happen. Frisk, you might have beat me before but this world reset even AFTER you got the 'best' ending! This will just go on forever and ever! And truthfully, I don't mind! I LOVE playing with you. And we even have a new playmate!" Flowey exclaimed, an evil look on his face.
"Wh-what? What do you mean? 'Best' ending? I don't understand!" The eight year old wailed, tears in his eyes. His new friends were wrapped tightly up in Flowey's vines, seemingly unconscious.
"I… I thought that after getting monsters onto the surface things would be fine but… No. I don't know what to do now!" Frisk replied, biting their lip.
"That's right! And I'm going to enjoy killing you both again and again!" Suddenly, before a fight could even begin, the world went grayscale. However, no buttons or health bars appeared. Instead, it was just Flowey, Harry, Frisk and Chara, who was floating in the air, looking around confused.
"That is enough." A voice from nowhere said. Stepping from the shadows was a cloaked figure. However, the cloak was partially transparent, revealing a skeletal figure underneath. A scythe rested in one of it's hands.
"Wh-who the fuck are you?!" Flowey screamed.
"I am the end. But I am also, a new beginning." The figure's voice was almost demonic, a mixture of a woman, a man's and a child's voice.
"Who… who are you?" Frisk echoed, a small whimper escaping them.
"I. Am Death. I am here to… make an offer." Death said, it's head turning to the child.
"An… offer of what kind?" Chara asked, floating in front of Frisk and Harry.
"I, am in need of a favor, and you are as well. I can give back Asriel's SOUL, as well as restore Chara back to life. I will also open the barrier. However, I will need something from you two as well." Death pointed to Frisk and Harry, the two inching closer together.
"Wh...what do you need?" The smaller child whimpered out.
"I need you to gather three things. A wand, a cloak, and a stone. But not just any. No, the wand is the Elder Wand." With a wave of it's hand, an image of a want floated before Death. "The cloak is the Cloak of Invisibility. There are many, but this one is unique, belonging to the Potter family for centuries. The stone is a Stone of Resurrection, and can bring back the dead."
"That sounds easy enough!" Frisk cheered, perking up.
"There is one more thing however. Frisk, you will need to give up your powers to SAVE and RESET. Harry, you will need to give up your mother's SOUL. It is long past her time, and her sacrifice will assist in bringing back Asriel and Chara." Death continued.
"Um… who is Asriel?" Harry asked.
"Asriel is who Flowey once was. The son of the king and queen, taken far before his time."
"Now hang on a minute buster! What makes you think I want to go back to being that smelly goat kid!" Said flower yelled.
"You will not disappear Flowey, for you have created your own life. Asriel will come back as a separate entity."
"I… I'll give up my powers. I don't really want them anymore. If this means getting monsters to the surface, then I'll do it!" Frisk agreed. Death turned it's head to Harry.
"I… but mom… I don't want her to go…" Harry sniffed. "But… I'll do it. Mom… mom is gone. And… she's been protecting me all this time, and now I want to protect the people I care about too. So. I'll do it." Before Death could continue, Frisk spoke up.
"Wait a second! What about Flowey and Chara's power to SAVE and RESET?" They asked.
"You currently have that power, and once I take it away, no one will be able to use it again. It is not a power that was meant to be in the hands of mortals, however an… error from one of my colleagues allowed the power to come into this realm." Death explained.
"I see… w-well… I guess that's all right? Harry and I just need to give those things up and everything will be good?" Frisk questioned, looking at the figure.
"This is very brave of you two. Remember, you must bring me those three items before you pass away. You have quite a long time to do so." Death waved it's hand and Harry's SOUL appeared. The white part peeled away and floated into Death's hand, where it vanished. Frisk then felt a bit… weak, but otherwise was fine.
"When you awaken next, you will be joined by the two who have been lost for a long time. I hope you all enjoy your lives. Be well." And then the world went black.
Harry opened his eyes, groaning slightly at the weight on top of him, as well as something tickling his nose. He suddenly heard a woman gasp, and he turned his head to see Toriel staring in his direction. No… staring at what was on top of him.
He looked up and saw a kid laying on top of him. The goat kind of kid. The small, fuzzy child opened it's eyes as well and looked around, it's eyes landing on Toriel.
"Mom… Dad…" The boy, as far as Harry could tell, whispered, then jumped off of him, running over to his parents that hugged him tightly.
"M-my son… but how? You were turned into dust! Oh… who cares! You are here now." Toriel cried, tears soaking into her fur.
"Asriel… you… Whoever did this… thank you." Asgore whispered. Harry sat up and looked around, seeing Frisk lying under Chara, who slowly woke up as well.
Chara was wondering why his head hurt so much, then realized he could feel the grass under him. He gasped and jumped off of Frisk, looking at his hands. He looked towards the Dreemurr family and frowned, feeling a bit jealous.
Asgore opened his eyes and prepared to say something when he saw Chara.
"Chara… y-you too?" He gasped, making Toriel and Asriel look as well. Asriel yelled out Chara's name and ran over to the other boy, hugging him as well.
"Oof! H-hey Azzy…" Chara whispered, his voice slightly hoarse. "H-hey, c'mon you cry baby, you're acting like we haven't seen each other in forever…"
"We haven't you butthead! I don't know how long it's been but it's been too long! I missed you!" The prince yelled, burying his face into the other's sweater.
"Chara… we missed you as well." Toriel whispered, coming over and joining the hug along with Asgore.
Harry watched the scene with a pang of sadness in his chest. He felt tears pricking in his eyes before he felt a pair of hands on his shoulders. He looked up and saw Sans and Papyrus smiling at him.
"HARRY! I AM NOT SURE IF YOU ALREADY HAVE A FAMILY TO GO BACK TO, BUT SANS AND I ARE ALWAYS THERE FOR YOU! I'M SURE THE QUEEN AND KING WILL BE AS WELL! HUMAN! THAT GOES FOR YOU AS WELL!" Papyrus said with a smile. Frisk was smiling as well and nodded.
The royal family broke apart and looked at each other, then at Frisk and Harry.
"There is always room for you two as well. You two have helped us so much, and you are only children. Please, if you do not have anywhere else to go, let us take care of you. We can live a good life on the surface, wherever we go." Toriel agreed, a smile on her face as well.
"Yeah! You and Frisky Bits didn't do all that just to be left out." Chara said, walking over and ruffling Frisk's hair. "Besides, I'm pretty sure that you two want to stay with us, since you've bonded so much."
"C-can I? I… I want to but I don't want to be a burden." Harry's voice was small, and he couldn't look at anyone.
"Burden? No, no! We would be happy to have you. Frisk as well. You two are only children, it would not be right to leave you out." Toriel cried.
"I… don't really have anywhere else to go, so I accept!" Frisk replied, grinning.
"I… want to stay too, please."
"Of course. Welcome to the family." Asgore said, standing up. "Let us go to the surface, where we can start a new life!"
(A/N: I had to resist making Death Grim from Grim Adventures of Billy and Mandy but I felt that ruined the mood.
Edit: Added some things to the chapter to hopefully make it flow a bit better. Sorry if it's not much of an improvement. )