As Odin and the group were walking to wherever Odin was taking them, he started explaining some bits of Asgardian history. They passed through a chamber that held what could only be described as Yggdrasil itself, where they could see the many realms on the different branches. Odin talked as they moved through this chamber.
"There are ancient relics that pre-date the universe itself. What now flows inside him, appears to be one of them. The Nine Realms are not eternal. They have a dawn and a they will have a dusk."
They eventually arrived in what seemed to be a library and Odin opend a a seemingly magic book and continued. "But before that dawn, the dark forces, the Dark Elves, reigned absolute and unchallenged."
Thor frowned as he stared at his father and the book. "Born of eternal night, the Dark Elves come to steal away the light. I know these stories, mother told them to us as children."
Odin continued. " Their leader Malekith made a weapon out of that Darkness and it was called The Aether. While the other relics often appear as stones the Aether was fluid and ever-changing. It changes matter into dark-matter. it seeks out host bodies drawing strength from their life force."
"That explains why it left Jane and went to Seth, he had a stronger life force to siphon."
Odin continued. "Yes, of course. Malekith sought to use the Aether's power to return the universe to one of darkness. But after eternities of bloodshed, my father Bor, finally triumphed. ushering in a peace that lasted thousands of years."
"What happened?" Jane asked.
"He killed them all." Odin replied while looking at Jane.
"Are you certain? The Aether was said to have been destroyed with them, and yet here it is." Thor said to Odin.
"The Dark Elves are dead." Odin said.
"Does the book say how to get it out of me?" Seth asked.
"No, it does not. But I am curious, if it wanted a stronger host, why go to another mortal when gods were present." Odin said while looking at Seth.
'Because I'm strong and have a vaster potential than every God in this realm'
"I am sorry Allfather, but I do not know. Your guess would be as good as mine." Seth said.
Odin nodded but had a frown on his face as he walked away.
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(Bifrost Room)
Two of the warriors three are entering through the Bifrost with the prisoners from Vanaheim.
"Acting as caretakers of these scoundrels is beneath us." Volstagg says with a lot of irritation.
Fandral just laughs and says "Oh please my rotund friend, if they were beneath you, they'd be dead."
You can see one of them is larger than the rest and has blue eyes very similar to a certain Dark Elf that had been speaking to Malekith.
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(Throne Room)
Odin sits on the Throne and speaks with Thor about what to do with Seth who is standing off to the side. Before Thor gets a chance to respond, Seth starts the second best performance of his new life. He grabs his head and screams in pain as if he is having a migraine and all the guards look at him. When Seth finally looks at Odin, Odin see a that Seth's eyes are a dark red almost black color, which Seth did with Mystique's power to make it seem as if he was affected by The Aether.
Eventually Seth stops screaming and groaning in pain and looks up at Odin.
"What did you see?" Odin asks with concern evident on his face.
"Sire, it is not just what I saw, but what I heard that concerns me. I saw the Dark Elves doing something and for some reason I could understand the Elvish language. They were doing some sort of ritual and they were turning one of their own into what they called a Kursed. it seems to be a transformation that makes them stronger and a lot harder to kill." Seth said.
Odin frowned. "Is there anything else?"
"Yes, the Dark Elf that was speaking said something that I believe was "I will tear down their defenses and ensure your return into a universe reborn."
Odin looked very unhappy. "This is troubling news to be sure. I would be remiss in my duties as King to ignore such information." Odin said.
"Bolster the guard in the dungeons and add troops to the shield generator!!" Odin said to the room and his subjects were quick to move.
Seth knew that he would be needed here and went forward and kneeled before Odin.
"Allfather please allow me to join in this battle and fight for Asgard. I believe that my abilities can be very helpful in this instance."
Odin was confused as from what the boy had shown, his powers couldn't be of that much help. "What benefit could your powers bring? You are good on a battlefield but we know not how they will attack, if they even will."
"Sire, I am afraid there is much I haven't shown in regard to my powers."
Odin had a skeptical look and wondered what it could be. "Very well. I believe a demonstration is in order."
Seth merely nodded as he then instantly created over a thousand clones and all of them had his abilities, he then had all the clones use storm's power. all the clones eyes turned white and there were sparks of electricity coming off from their eyes. All the clones also floated into the air with a wind funnel forming below them. Seth then raised his hand and caused all the guards and non bolted down items to float in the air and revolve in a circle around him.
Odin is shocked as he had never seen a mortal so powerful. His strength nears that of what he has seen from gods who had unlocked their divinity. He decided he would ask him about it later.
"That is also not the maximum amount of clones I can create. Each clone also has my powers and can think independently. I can also control magnetic fields which allows me to do something like this."
Seth used magneto's power to lift Mjolnir and make it float in front of him. Thor was stunned.
"S-seth you are worthy?" Thor said.
"No, my son, he is not lifting Mjolnir itself. merely placing a magnetic field around the metal to move it." Odin explained succinctly as he realized he had to reevaluate his original opinion of Seth.
Thor let out a breath he didn't realize he was holding and nodded at his father.
"Very well, you can be the first line of defense for Asgard and if you can use your magnetic capability against ships, then we may use you against aerial attack." Odin said to Seth
Seth nods and then floats to the ground and deactivates his clones and storm's power.
"Thank you Allfather." Seth says as he bows.