Okay, so here are me answering some comments:

To shadyxlr and HPfan7-8: I've decided to just do a little bit of both of the options - if Shirou creates one Infinity Stone, he will immediately become exhausted for about 2 weeks. During that time, Shirou will not be able to use EX ranked spells or create Divine Constructs (with Avalon being the only exception).

To Abloik: Both Shirou's Structural Analysis spell and his mind has been upgraded by Alaya and Gaia themselves. They have become so powerful that the combination allows Shirou to easily understand existences such as Ea.

And to the person who was wondering why it looks like I'm switching the chapters from 1st person to 3rd, it's because my fics were a bit of a mess when I first started. On Wattpad, I had started it as first person but switched it to 3rd person.

Instead of answering his question, Fury had Shirou was brought to a room by a couple of SHIELD guards. After he stepped in, Fury slammed the door shut.

"You'll be staying here until we check this alternate dimension story is true," Fury said, through speakers.

"So, forever," Shirou smirked, doubting that they had the technology to reach out of their universe. Even if they could figure it out, it would be almost impossible to find his dimension.

Using reinforced hearing, the magus detected that Fury and the other agents had left. Bored, he decided to just wait until something interesting happened..

After an hour or so, Shirou heard an explosion and the Helicarrier rumbled.

'Screw it,' he thought.

With a single kick, he knocked down the steel door, sending it flying into the opposing wall. Hearing a large battle going on upstairs, Shirou teleported above by using the teleportation spell of Medea, where he found Thor fighting a giant, green monster. When it looked like the monster was getting the upper hand, Shirou pointed his arm at him, a black and red wispy orb appeared.

"Gandr!" Shirou shouted, the black curse coming from his hand and blasting the monster. Unfortunately, it didn't do a thing. The beast roared and smashed at the attacking magus. He dodged it easily and jumped back. As Shirou prepared to attack, Thor flew towards him.

"Don't," he said, "it's Banner."

Shirou sighed. "Of course it is," he said in a tired voice. The Hulk charged, grabbing them and jumping up to the top of the Helicarrier. Groggy, he got up. Helping Thor up, they turned towards the Hulk, who was being hailed with bullets.

Shirou turned to Thor. "Go help the others. I go this."

Thor hesitated, then flew back into the Helicarrier. As the Hulk was roaring at the planes, Shirou traced my bow and began to hail him with arrows. Turning to Shirou, the Hulk roared with rage.

"I don't want to hurt you, Banner," Shirou said, "but I will."

The Hulk charged at him, but Shirou just jumped over him. Summoning the Nine Lives, he slammed it into Hulk, who staggered. The Hulk then slapped Shirou into the ground. Groaning, he sent a blast of prana, sending the monstrous man into the air. Back flipping a few feet, Shirou summoned his bow again and traced a spiral sword. Turning it into an arrow, the Iron-Wrought Magus shouted its name.

"Caladbolg," he shouted, releasing the power of the Broken Phantasm. The spiral sword that twisted space hit the Hulk, and exploded with an enormous amount of power. The Hulk was blasted into the distance.

Exhausted, Shirou trailed back into the Helicarrier to help out.

Scene Break

Shirou was running through the Helicarrier finding no one. He searched everywhere, but couldn't find anything. Getting annoyed, he stopped and reinforced his senses. He heard screams, shouting, and gunfire. It was chaos. Then he heard a familiar shout. It was Thor. Running as fast as he can, he raced towards Thor's voice.

As he was getting closer, a man was blasted through the wall. He had black hair and wore a green and black get up. He was also scorched. Shirou instantly armed himself, tracing his fathers Calico M590, and pointed the gun at him.

"Who are you?" Shirou questioned.

The man coughed, shaken by the whatever blast hit him. He then glared at Shirou. "I am Loki. A god. Point your useless weapon somewhere else."

Shirou's eyes narrowed. 'Loki,' Shirou thought. 'He's the one who owns that staff.'

Loki sneered at Shirou, but before he could do anything, Shirou came at him, tracing Durandal to slice him in two. Loki snarled and dodged the blows. He then summoned his own staff (the same which held the Infinity Stone), and the two began their own battle. Loki shot some energy blasts, but Shirou's magical resistance negated each shot. Rushing forward, Shirou swung the peerless sword at the god of mischief, but slashed through an illusion instead. Loki appeared behind him and threw a vent at me via telekinesis, but sliced it with by Shirou's sword.

'Damn,' Shirou thought. 'Those illusions are annoying. And I can't use my more powerful weapons because they would destroy the Helicarrier. Such a troublesome predicament.'

Loki stared at Shirou with interest. "It seems like your not an ordinary human. How'd you like to join the winning side."

Shirou smirked. "Not interested. I suppose you won't surrender now."

Loki glared. "Not on your life, mongrel. I will be king."

Inside Shirou, something snapped. That last comment was too similar to Gilgamesh for his liking. Un-tracing Durandal, Shirou now created a different weapon. Something meant to kill gods. Shirou was now armed with Enkidu, the Chains of Heaven. He sent the chains at Loki, who blocked it with his scepter. Shirou then used the chains to grab Loki, and hurled him across the corridor. He was about to attack again, when he saw something that made him freeze. Loki took this chance and disappeared.

With the threat now gone, Shirou ran through the hole Loki had made. A man, probably a S.H.I.E.L.D. official, laid dying, next to a strange gun. Loki must have stabbed him with his scepter. Shirou knew that no amount of healing magecraft would help this man, so he ran towards him and prepared to summon Avalon.

However, before he could do it, the man grabbed him. "Help them. Help them save the world," he whispered into my ear. He stared pleadingly into my eyes. And then, he saw no more.

"Don't worry," Shirou said, sadly. "I'll help them save this world."