So, here is the next chapter, which, as promised, has far more developments than the previous chapter.

Guest 2.0: There are multiple versions of Olympus; just as there are multiple earths, but the god are not something that can be replicated, there is only one Kronos just as there is only one Zeus. The various Olympus' act as a sort of base for the gods for whichever earth they are on at the time. Who says I'm not using Wonder Woman.? *Winks*

The DEO

Morning

"So we need a team to break into L-Corp to take the Dwarf Star Particles and a team to head to Olympus in order to protect the throne room," Oliver said as they all stood in the briefing room.

"We actually need a third team," Luke explained. "Kronos was in my head for over six years, I know him better than anyone. Getting to Olympus is only part of his plan. He'll send in the demigod for that. But he'll unleash every monster on this earth on National City to keep us all distracted while the demigod heads to Olympus."

"Just like three years ago," Percy noted and Luke nodded.

"We'll need a third team to hold the line. And Wells, I need you to build something," Luke said and Harry raised an eyebrow.

"Well then you've got the wrong Wells. My mind is not what it was," Harry said bluntly.

Luke only smirked as he walked over to Harry. With everyone watching, Luke placed a hand on Harry's head and Harry gasped a he was suddenly surrounded by a gold light. When it faded, Luke lowered his hand as Harry stumbled back, being supported by Barry and J'onn.

"And now it is," Luke said simply. "The DEO has what you need. I'll tell you what to do. The rest of you, you know your jobs. Get to it."

L-Corp

Later in the morning

A security guard was headed towards his post when a door opened and he was grabbed, getting pulled inside. A few moments later, Barry exited, dressed in the guard's uniform.

Back inside the room, the guard, stripped down to his underpants, was tied to a chair, gagged as Oliver and Kara, dressed in their suits, loomed over him.

"Where is the Dwarf Star Particle?" Oliver demanded.

Cat Co World Wide Media

Same time

Clark, dressed in his civilian disguise, entered the building, accompanied by Percy, Thalia, Annabeth, and J'onn, who had shifted into Kara's appearance. As they stepped inside, Clark and J'onn looked around, finding it hard to believe that this was the entrance to Olympus.

"This is the entrance to the home of the gods?" J'onn asked skeptically, an incredulous look crossing Kara's face.

"It's a little hard to wrap your head around, but yeah," Percy said before noticing Clark giving him an odd look. "What?"

"For some reason, I have the urge to hit you," Clark confessed, surprised by the instinct.

"He has that effect on people," Thalia joked.

"For some reason, I have the urge to make a sarcastic comment, but that's not unusual for me," Percy shrugged.

"We need to focus," Annabeth snapped, getting their heads back in the game.

"You two hold the line out here," Percy told Clark and J'onn. "Mortals can't enter Olympus, so the last line of defense will be us."

"Watch for anyone who looks suspicious. Patty's just outside, she can see through The Mist so she'll be able to tell you if any monsters are coming your way," Annabeth added.

"Good luck," J'onn said solemnly.

"You to," Percy said.

Percy, Annabeth and Thalia headed towards the elevators as Clark and J'onn watched. Getting on, Percy pressed a button that The Mist would hide from mortal view. The doors closed and, at such a speed that the trio almost stumbled, the elevator began rising, heading towards the top. When the doors opened, the trio of demigods stared at Mount Olympus.

L-Corp

Same time

"I don't care what you do to me, I'll never sell out Ms. Luthor," the guard said determinedly.

"I believe you. But this isn't about us or her. I'm sure you've heard about the strange weather from last night," Kara began and he raised an eyebrow. "The reason it seems like the planet is falling apart is because it is. Something is coming, something that will wipe out not only our lives, but the lives of everyone in the universe."

"In order to stop it, we need the Dwarf Star Particle," Oliver explained.

"Please, you could be saving millions of lives," Kara begged.

"And why should I trust you?" the guard scoffed.

"It's not about trust, it's about if we're right," Oliver said simply. "Because if we are, then not only will you die, but your friends, your family, everyone you care about. If there's even a small part of you that believes us, we're begging you, help us."

For a few moments, the guard simply stared up at Oliver and Kara, who worried they hadn't gotten through to him. Then, he sighed.

"Okay, I'll help you."

Olympus

Same time

"It looks exactly like the Olympus on our earth," Percy noted as he, Annabeth and Thalia walked through the city.

"It even has all the changes you've made since the Titan war," Thalia pointed out to Annabeth.

"If the gods use it every time they stop here, they probably changed it when I did," Annabeth pointed out.

The trio were silent as they reached the throne room. It was exactly as the one on their earth had been three years earlier: twelve seats, one for each of the twelve Olympians, were assembled in a circle, a pyre in the center of it.

"Well, apparently they didn't change this," Thalia noted.

"It doesn't matter. Because this is where Kronos will strike. So we don't let him," Percy as he uncapped Riptide.

"You read my mind Kelp Head," Thalia said as she gripped her bow tightly.

Cat Co

Same time

Outside the building, Patty was looking around from her position near the entrance, her body as she fought the urge to go for her knife. Her eyes narrowed as she saw something that confused her.

The DEO

Same time

At the DEO, Harry was working on the device under Luke's instruction when their Comms blared.

"Wells, its Patty. Where are you?"

"Still at the DEO, working on whatever this Monitor wants me to build. Why?" Harry asked as he tapped the Comms piece in his ear.

Cat Co

Same time

"Because I'm staring at someone who looks exactly like you across the street," Patty said as she stared at Harry look alike, who smirked at her smugly.

The DEO

Same time

"By Olympus," Luke breathed as the blood drained from Harry's face.

"Patty, listen to me, that is not me. You need to call Clark and J'onn for backup, now. He is extremely dangerous. His name is Eobard Thawne, he's the one who killed Barry's mother," Harry explained.

Cat Co

Same time

Patty pulled out her knife but, before she could blink, Thawne had sped across the street, pinning her to the side of the building by grabbing her neck as he held his vibrating hand inches from her chest.

"I don't think so, sister," Thawne said with a smirk.

Before he could do anything, he was punched in the side and went flying. Patty slumped to the ground, breathing heavily as she grasped her dagger.

"You're not gonna kill anyone today," Clark said firmly, dressed in his Superman suit as J'onn emerged in his Martian form.

"I don't think you should be worrying about me," Thawne said as he got back to his feet. "I think you should be worrying about them."

Although Clark and J'onn had no idea what he was talking about, Patty stiffened. From the sky, dozens, no, hundreds of Sows and Empousa demons descended from the sky as dozens of Hellhounds suddenly appeared behind Thawne, snarling angrily at the three heroes.

"Patty? What do you see?" Clark asked as she gulped.

"We're in trouble."

L-Corp

Same time

Barry, still dressed in the guard's uniform, entered the Applied Science Division of the building. It was a lot more impressive than Star Labs, that was for sure, Barry mused as he looked around.

"Can we help you?" One of the scientists asked as they saw Barry.

"Yeah, Ms. Luthor wants you all in the conference room, something about a new project," Barry lied.

"She told us to work on the Dwarf Star Particles," another scientist said confused.

"Alright, I'll go tell her you have better things to do than to listen to her instructions. What was your name again?" Barry asked pointedly, fighting the amused smile that threatened to cross his face at the sight of their panic.

"Look, we're just confused," one of the scientists said.

"Hey, so am I. But Ms. Luthor's in a mood, so I'd just do what she says," Barry advised.

Although confused, the scientists had no desire to deal with an irritated Lena Luthor, so they walked out with Barry, although there was some muttering. Barry slowed down so he was behind them, out of sight, before turning and speeding back towards the Applied Science Division. Barry walked over to the containment module that held the Dwarf Star Particles. Barry phased through it, picking up the spherical container which housed the Particles when he heard the click of a gun.

"Put them back. Slowly," Lena Luthor ordered.

The DEO

Same time

"You need to work, now," Luke ordered Harry as he tried to put together the final piece of the device.

"I'm going as fast as I can. What does it do, anyway?" Harry asked.

"Show us the way to stop Kronos," Luke said simply.

Before Harry could respond, Luke suddenly let out a cry of pain. Harry whirled around as Luke held his shaking hands, his entire body starting to glow.

"No, not now!" Luke cried his voice echoing as Harry watched with wide eyes.

"What's happening?" Harry demanded.

"My punishment," Luke said before, to Harry's shock, he vanished in a flash of light.

Cat Co

Same time

Things were not going well. Patty used her dagger to stab a Hellhound, which disintegrated as she ducked, barely dodging the strike from an Empousa. She sent a kick to its abdomen and it hissed as Clark used his heat vision to fry it. This had been going on for the last few minutes, Patty stabbing monsters left and right as Clark and J'onn tried helping out as much as they could without being able to see what they were fighting. And at some point during the fight, Thawne had managed to vanish from view, no doubt heading towards Olympus. They could only hope Percy, Annabeth and Thalia could stop him now.

Olympus

Same time

Thawne entered the throne room, smirking as he looked around. It had been a long time since he had been here. Seeing the pyre, Thawne headed towards it before he stilled. He was not alone. Thawne suddenly whirled around, reaching out and catching something invisible. He threw it and it hit a pillar. Annabeth's invisibility cap fell from her head and she appeared as Percy and Thalia jumped out. Thalia fired at Thawne but he caught the arrow before throwing it to the side. Percy rushed him, trying to strike him with Riptide but Thawne ducked. Thawne vibrated his hand, trying to stab Percy in the chest but, to his shock, his hand simply bounced off Percy's chest.

Taking advantage of Thawne's surprise, Percy kneed him in the abdomen and Thawne stumbled back. Thalia attempted to strike him with her shield but Thawne, recovering from his surprise, simply stepped out of the way. Using his super speed, Thawne grabbed Thalia and threw her into a pillar. Percy once again tried to strike him with Riptide but Thawne sped out of the way before creating a mini-cyclone with his hands, sending Percy crashing into a pillar as well.

"Really? This is the best The Monitor has to offer?" Thawne asked arrogantly.

"Trust me, we're not even getting started," Percy grumbled as he climbed to his feet before rushing Thawne.

L-Corp

Same time

"Nothing goes on in my company without me knowing," Lena said, not lowering the gun as Barry tried to figure a way out of this. "One I realized one of my security guards didn't show up for his shift, it was simply a matter of going through the security taps to find you. I just had to figure out what you were after. Now put down the Particles."

"Ms. Luthor, I know this looks bad. But I need these particles, the fate of the world depends on it," Barry tried to reason.

"If you're going to lie, then do a better job at it," Lena scoffed.

"He's not lying," Kara said as she and Oliver appeared in the doorway. "Lena, put the gun down."

"I should have known you were involved with this. Whenever something wrong in my life is happening, Kara Danvers can't be far behind. Or is Zor-El? I can't seem to keep track," Lena said bitingly and Kara flinched.

"I deserve that," Kara acknowledged. "I did lie to you, manipulate you."

"Treat me like the enemy," Lena accused and Kara nodded.

"You're right, I did. But this isn't about us, this is about the world. What's coming is bigger than us. Lena, I need you to trust me," Kara pleaded.

"That's not something a Super gets to ask me," Lena shot back and Kara flinched, Lena's paraphrasing of her own words not lost on her.

"Lena, please," Kara tried one more time.

"You treated me like the enemy. Well, you got what you wanted," Lena said icily.

"I never wanted this!" Kara protested.

"Like Hell you didn't! Asking James to break into my vault, treating me like a criminal, lying and manipulating me for years!" Lena ranted. "I was never your enemy until you treated me like one!"

"And now you wanna hurt Kara the way she hurt you, is that it?" Oliver demanded, speaking up for the first time since they had walked into the room. "Maybe Kara did do all that, but who's the one holding the gun?"

"Don't act like you know me, you don't know anything about me! You do not get to judge me!" Lena sneered.

"You're right, I don't know you. But I see the look in your eyes, I've seen it before. You want to give everyone what they expect because you think the only see you as a monster. But Kara would not be standing here, trying to reason with you if she thought that," Oliver said as Lena paused, considering his words. "I came from a family with a less than heroic history to. But that didn't make me a monster. It doesn't have to make you one either. We are all responsible for our own choices. You can choose right now, you can choose a better path. Not because Kara or anyone else is making you. Look inside yourself and ask what you really want."

For several moments, it was silent as they looked at Lena, waiting for her to make a decision. Finally, Lena lowered her gun.

"Go," Lena said gruffly, seeming tired.

"Lena-" Kara started.

"Just go. Before I change my mind," Lena said as she turned away from Kara, unable to look at her anymore.

"Thank you," Barry said as he and Oliver left the room, leaving Kara and Lena lone.

"For what it's worth, I really am sorry," Kara said before she followed after her friends, not seeing the tears running down Lena's face.

Olympus

Same time

The fight was not going well. Thawne threw Annabeth into Thalia and the two stumbled as Percy tried to strike Thawne but Thawne sent a powerful kick to Percy's abdomen, sending him crashing into a pillar.

"I'm honestly disappointed," Thawne said as he approached the pyre. "I was expecting more from the most powerful demigods of this time. I guess the history books are wrong about you three."

Suddenly, there was a flash of light. At the entrance of the throne room, Luke appeared, staring at the scene with sad resignation.

"Luke?" Percy said dumbly.

"Stop him!" Annabeth cried out.

"He can't," Thawne said smugly. "He can only bear witness to what's about to happen."

Thawne held out his hand and a lantern materialized in it. As he opened it, the fire from the pyre began being sucked into it.

"Luke, please, stop him!" Percy pleaded.

"I can't, no matter how much I want to," Luke said in self-loathing. "My punishment forces me to bear witness to tragedy, to the consequences of my actions. I can't stop him…but I can save you so that you can."

Luke's hands suddenly glowed pure gold and several specs of light shot out of them. While some flew out of the throne room, three hit Thalia, Annabeth, and Percy, who vanished in gold flashes of light.

Cat Co

Same time

Patty stabbed an Empousa demon before being hit by one of the specs, vanishing.

At the same moment, J'onn punched a Hellhound before he to was hit, vanishing as well.

The DEO

Same time

Harry was looking at the device Luke had made him build, wondering how he could complete it now when he was hit by a spec, vanishing along with the device.

L-Corp

Same time

"Come on, let's move," Oliver told Kara and Barry as they headed towards the door in the lobby. "We don't have a moment to waste."

Before any of them noticed three specs headings towards them, they were hit and vanished in gold flashes as well.

Olympus

Same time

"Where did you send them?" Thawne as he finished sucking the flame in the pyre into the lantern, Olympus shaking.

"Somewhere where they can regroup. They may not have stopped on this earth, but they will stop you. I swear of that on the River Styx," Luke said with conviction.

"We'll see," Thawne said with a smirk.

A Breach opened behind him and Thawne sped through it. Luke closed his eyes before everything was consumed by a blinding flash of light.

I'll be honest; I hated what the writers did to Harry at the end of season four, so I fixed it.

Clark saying he wants to punch Percy is just a little joke to the fact that both Tyler Hoechlin and Dylan O'Brien were main characters on Teen Wolf, as well as a reference to the relationship of their characters.

Outside crossovers, I have not watched Supergirl since season three, which took me three separate occasions to get through, but I do know what happened between Kara and Lena. Honestly, I feel like both are to blame. Kara pretty much laid the groundwork for Lena's betrayal with her Kryptonite freak out but it doesn't justify Lena's actions. Anyway, hope I did okay with Lena in this chapter.