Svartalfheim
Thor fell to his knees as he finally succumbed to exhaustion, there was nothing left of Mangog, only the derelict shell of its armor. He looked past the remains and saw Loki who was almost in shock of the whole thing. "Is that it?" Loki shouted at Thor who simply shrugged in response.
Thor stood and began to limp towards Loki who pulled himself up to a sitting position and simply watched Mangog. They had gotten their vengeance, for their mother and their father but Loki now wondered what would happen next. Thor was about to speak when a great light emitted from Mangog's body. "Oh, come on" shouted Thor as he readied for another fight.
The armor exploded as billions of souls were freed from its confines and began to float into the sky. "Where are they going?" asked Loki who stood next to Thor.
"Valhalla" answered Sif who had sneaked up on them after the fight with the Warriors Three. The Warriors Three and Sif all embraced Thor as they celebrated a victory that seemingly saved the universe. Loki was about to ask for Heimdall to pull him to Asgard when Volstagg pulled Loki in for a bear hug from behind, they had not laughed like that together in so long that Loki had forgotten how good it had felt.
They celebrated a few more minutes before Thor approached where Volstagg had hidden his mother's body during the chaos. Thor lifted the body into his arms and the tears began to stream down his face. It took a few moments but Thor regained his composure "Heimdall…bring us home."
Hela's Cave
Few Days Later
Hela had been quite bored ever since her dear nephews had run off, but they had gotten their victory, she could tell, thanks to the batches of souls she felt release and go where they needed to go. She was about to have the Valkyrie bring Thor to her to hold up his end of the bargain and release her when she saw the Bifrost come down at the fortress that guarded against her escape. She smirked as she saw another Bifrost Bridge portal open and then vanish again, had he lied to her, she wondered not getting that feeling from Thor perhaps the half breed Loki but not Thor.
Soon she was greeted by the sound of Mjolnir spinning in the air as Thor landed just in front of the cave. "Hela" he said with a serious tone as she stood and came close to the invisible barrier that contained her to the cave. His left arm was heavily bandaged and his hair was cut to a buzz cut length with a few singed hairs on his left side. "I am here as promised to free you from this cave" he stated officially and he reached out with Mjolnir and struck the magical incantations from the wall outside the cave.
Hela felt the barrier give as she took a small step into the open, all the other times she had escaped it had been painful and she was immediately forced into a fight with the Valkyrie. This time however, there was no pain and apparently no fight. She smiled and took a step towards Thor who leaned on a boulder by her cave. "I had forgotten how good this feels" she said as she walked past Thor. "But it won't feel as good as when I carve up every piece of Asgard and make it my own, as is my birth right" she sneered as she turned on Thor.
She had expected Thor to be ready to brawl but instead found him calm and smiling, "You see I had a feeling you would say that" he said as he took a step toward her as he threw Mjolnir behind himself "You see I fulfilled my end of the bargain" remarked Thor as Mjolnir vanished in the distance. "You see the reason it has taken a few days to get back to you was because I needed to find a way to ensure that you didn't invade Asgard and sow chaos and destruction. I couldn't think of any but luckily my brother is one hell of a sorcerer." He nearly snickered as Hela was clearly trying to put it all together.
"You see I have sent the Valkyrie home and now we are the only two being on Niflheim, and thanks to my brother things are about to get a little lonely for you. When you requested your freedom in exchange for information on the Odin force you made a small critical error" Thor explained getting a confused look from Hela as she thought.
"All you asked for was to be freed from your cell which I have done…however, there was never a point when you said I couldn't ensure you stay right here. Loki managed to use the fact that Yggdrasill is dying to our advantage and cut Niflheim off from the Bifrost forever after one more use" explained Thor as Mjolnir was coming around behind Hela who was starting to piece things together.
"So as promised you are free from your cave and free to roam where you choose, assuming of course you can figure out a way to escape Niflheim without using the Bifrost" Thor stated with a smile as Hela let out a howl of rage as she was about to attack Thor who simply jumped in the air and caught the handle of Mjolnir "Bye" he shouted as he was pulled out of her reach and the Bifrost Bridge plucked him Niflheim and then sealed it from ever being used again.
Hela watched as Thor vanished and the planet shook, she was trapped on Niflheim "NOOOOO!" she shouted to the emptiness of her massive new cell.
Asgard
The Next Day
Thor looked as the people of Asgard began to leave the Throne Room as the services for his fallen parents were finished. It had been a long ceremony but Odin and Frigga were both beloved and everyone wanted to pay their respects to a King and Queen they respected and loved.
As the final people were filed out, Thor turned to find Loki standing next to the pyres where they had the ceremonial Asgardian funeral. Loki had vanished after casting the spell to cut Niffleheim from the Bifrost. Thor approached as the two brothers were completely alone, "So its finally done" stated Loki as he put his hand on Frigga's pyre.
Thor nodded "Yes, the coronation was done quietly a few nights ago and this finishes all of this business and puts Mother and Father to rest" explained Thor as Loki nodded along.
"Can't believe she's gone" Loki said as he crumpled to his knees and let out a howling cry. Thor caught his brother and hugged him as Loki let his emotions run wild. The two stayed like this for almost an hour before the tears stopped and they separated. Loki wiped his eyes and turned to Thor "Farewell" he said as he turned to leave.
"Loki wait" replied Thor causing Loki to stop. "You don't have to leave…I could use your help with all this King business."
Loki took a breath as he considered the offer, stay and help Thor rule Asgard as best as possible sounded like a good idea until he thought back to before Mangog appeared on Alfheim. The peace and tranquility Loki had found away from Asgard not to mention the fact that he had finally found a place in the universe and it didn't require Thor or Asgard. "Come home, Loki" pleaded Thor as Loki turned to look him in the eye.
"I think you've got this under control, besides there is too much mischief out there to leave alone" Loki said with a sly smile as he walked away and out of the Throne Room.
Sif and the Warriors Three along with Heimdall all entered the Throne Room as Thor looked up to the seat of power in Asgard. "Care to take a seat my King?" asked Heimdall as he knew Thor had been struggling with doubt regarding being King.
Thor smiled and looked at them all before taking the steps and turning to sit on the throne, he stopped just for a moment before his father's confidence improved his own. Thor sat and settled in and for the first time in a long time, felt at peace.
