Author's note: I'm not really sure how this fic is going to go. I have most of the story plotted out in my head but whether or not I continue with it will depend on how well this crossover is received. I may stand alone in thinking that putting Loki and Jareth in a room together might result in a little fun…

Anyway, hopefully someone will enjoy this and reviews are always welcome!

Chapter One

Thor lead Loki through the halls of the palace of Asgard by the heavy metal chains that linked the God of Mischief's hands together. Shackled and gagged Loki felt the anger and humiliation boil up inside of him. He raised his head slightly to glare dangerously at Thor's back. His brother would pay dearly for this humiliation, they all would.

His defeat at the hands of the Avengers had angered him. He hated when others spoiled his fun and he was certainly annoyed that he had let them get the better of him. What was truly boiling his blood though was the humiliation that his brother was currently making him endure. The shackles and gag were bad enough back on Midgard but Loki had assumed they were for show, so that it looked like Thor was taking Loki's crimes seriously. He had expected, however that once they had returned to Asgard Thor would remove them, Odin would arrange some sort of punishment for him and he would be back to his mischievous plotting in no time.

Evidently this was not the case. It would seem Thor had decided that part of Loki's punishment would be to be lead by these chains, silenced by the metal bit in his mouth, in front of the palace guards, servants and everyone else who was now rushing in to line the hallway so that they could taunt the God of Mischief as he stalked behind the Thor.

With one hand Thor grasped Loki's chains and in the other he carried the vessel in which the Tesseract was contained by one of its handles. He had a grim look on his face and was so lost in thought he barely noticed the gathering taunting crowd. He had not particularly wanted to drag Loki through the halls like this but the truth was that he was angry with his brother. Angry that despite everything he tried to do for him, to show him that he was a loved member of their family Loki would just throw it all back in his face and do something like try and take over the Earth. His anger was born mostly from the frustration that Thor could not understand what was going on in his brother's mind. He wanted to know so he could help Loki, help him get past all of this and so they could just go back to the way things were. He wanted them to all be a family again.

Thor arrived in his father's throne room with Loki in tow. Odin looked up from where he sat upon the grand golden throne of Asgard. His four advisors stood to either side of him and Frigga stood off to the side of the room. The sad look upon her face caused Thor's brow to crease and Loki to look away.

"Bring him here Thor" Odin ordered and pointed to a spot before his throne with his sceptre.

Thor did what he was asked and pulled Loki to stand before their father.

"The Tesseract" called one of Odin's advisors as he held his hand out to Thor to receive the Tesseract.

Thor handed his father's advisor the glass vessel and then looked to Odin himself.

"Father…" he began but was cut off almost immediately by Odin's booming voice.

"No Thor! I will not hear any of it. Your brother has done irreparable harm this time and I'm afraid it cannot be forgiven.

Thor looked to his brother, standing before his father's throne, chained, gagged and glaring furiously at him, before he turned back to his father, tears beginning to form in the corners of his eyes. Knowing the punishment that awaited Loki but unable to believe that his father would allow it…not to Loki…not to his brother.

"Please father…" Thor choked out. His eyes locked with Odin's, he did not even glance in the direction of the king's advisors. Thor knew it was them that would be insisting on this punishment and his only hope to save Loki was to appeal to Odin, not only as his father but also as Loki's father, for Thor knew that Odin still very much considered Loki to be his son.

"I'm afraid he has left me with little choice Thor…" Odin trailed off as he met the gaze of his first-born son.

The king's four advisors all looked on with blank expressions but Thor knew inside they were secretly pleased his brother had disgraced the family again because it meant they could finally justify their desired punishment for Loki, that which was reserved for only the most dangerous criminals in Asgard.

"Father…" Thor strode over to his father's side in three long steps and knelt by his throne. Grasping the side of the throne he continued "…please, you cannot let them have him father. You know what punishment awaits him if you do. They will torture him before they behead him in front of the entire city! Father! Please!" Thor's voice rose steadily as he pleaded with his father to decree a fate for Loki other than the one that had been advised.

One of Odin's advisors stepped forward to address the King.

"My liege. It would be most unwise not to follow this course with the prisoner. What would the people of Asgrand think if you…"

Odin held up a hand to silence his advisor.

"Loki is no prisoner, he may have committed crimes against Midgard and Asgard but he is still my son." Odin paused and looked down sadly upon his adopted son, knowing that if he did not stay the course set for by his advisors there was only one other option for Loki.

"Loki. For these crimes you have committed you must be punished. But as my son I cannot bring myself to subject you to Asgard's ultimate punishment."

Thor breathed a momentary sigh of relief knowing that his brother would live to see another day.

Loki was not so hopeful. He looked up at Odin, trying to keep his features as blank as possible so that none in the room could read a fear that was beginning to creep through him. Perhaps he had gone too far this time? No, his actions were warranted, his father and mother had lied to him, Thor was to be given the throne when it should be his and he was fairly certain they had not mourned him when he had fallen from the Bifrost, despite what Thor may have told him. However, despite all of this a part of him feared his impending punishment, Thor may have saved him from the torture chambers but the beheading that followed may have been a sweet release compared to the alternative punishment Odin was about to hand down.

"Instead, you will be stripped of your powers and banished to the Underground, never to return."

Loki's eyes widened involuntarily. The Underground was a place so awful no one had been banished there for centuries. The torture and subsequent death may have been preferable to an eternity in the Underground without his powers.

"No!" Thor cried out. He had heard of the Underground. It was a realm beyond that of the Nine, it held a position distinct from Neffleheim in that it was not a realm for the dead, it was a realm for the dishonoured living where disgraced individuals were once banished.

"My liege, we do think it best that - " Odin cut his advisor off with a stern look.

"I have made my decision and my word is final."

"Father, you cannot leave him to rot in the Underground forever, he is your son and my brother!" Thor was now desperate. He had hoped his father might strip Loki of his powers and banish him to Midgard or one of the other Nine realms where Thor could at lease visit him and keep an eye on him but the inhabitants of the Nine realms had no power to enter the Underground, only the King of each realm could cast individuals to this realm and once there they could never return.

Odin looked to Thor and knew that he was hurting because this course of action hurt him equally.

"It is the only way to spare Loki's life" Odin leant down to whisper to Thor. "They would have him tortured and killed. This is better."

"Is it father?" Thor questioned, the passion drained completely from his voice.

Odin stood and pointed his sceptre at Loki.

"For your crimes Loki, son of Odin. I strip you of your power…" in a blaze of green light Loki felt his power drained from him. He immediately despised the helpless feeling it left in him. Without his magic all he had was his silver tongue, and little help that would do him in the barren wastelands of the Underground "…and here by banish you to the Underground, never to return"

Loki looked to his brother one last time before a beam of blue light shot forth from Odin's staff and a portal of blue light opened up behind him. With a look of fierce hatred the likes of which Thor had never seen before in his brother's eyes Loki disappeared from the Throne room.

Frigga shed a tear quietly in the corner of the room before hurrying out the door, a sob quietly escaping her lips.

"No!" Thor called out as he ran to where his brother had been only a moment ago. He then spun around to face his father, anger blazing in his eyes.

"What have you done!"

"I have done what needed to be done!" Odin boomed has he rose from his throne "Loki went too far this time. He left me with little choice…" His voice softened and trailed off as he finished.

"Now leave. All of you. I wish to be alone." Odin said quietly.

Thor stormed from the throne room and Odin's advisors slowly exited behind him.

Thor too needed some time alone. He would find a way to bring Loki back, even if it meant defying his father's orders. He would not leave his brother to rot in the Underground.