A plot bunny I got, when reading some Avengers comic books. Heads-up, while this is part of the DAR(H)K WAR saga, it will be much shorter story than other I have written.

Disclaimer: I do not own DC Comics or the CW TV shows Arrow, The Flash, Supergirl, Legends of Tomorrow or any other characters or elements pertaining to the mentioned franchises.

Black Siren was walking down the jungle as she entered the cavern with a device that acted like some kind of a detector as it started to bleep more and more rapidly as she entered the cavern and tapped her ear.

"This is Siren. Report Omega-7. I've followed the energy signature to a cavern in Eastern Africa. I'm entering in for further investigation." She turned on her flashlight as she was scouring the cavern before she found some kind of an armor encased in the rock wall. But as she was about to call out again, behind her appeared a shadow as she turned around before the world went black.

Watchtower

"OK, let me stop you right there." Batman interrupted the man across the desk as the base of Justice League was floating midair. "Because I think a lot of us here have a lot of questions, first being, who are you?"

Selina, Clark, Kara, Hal, Oliver, Diana, Sara, Barbara, Laurel, Henry, Slade, Cisco and Barry were narrowing their eyes at the man.

"My name is Emil Hamilton. Director of Cadmus." The man explained. "Sorry, I thought you knew that, considering that you're the World's Greatest Detective."

"Cadmus." Kara scoffed, rolling her eyes. "I hate that name."

"Who do you work for?" Green Arrow demanded.

"Lyla Michaels." Hamilton said.

"You can trust him, Batman." Henry vouched for Hamilton. "Lyla says he's a good man."

"I've never heard of Cadmus on this Earth." Wonder Woman pointed out.

"It was established last year as a clandestine program designed to deal with extraterrestrial threats to humanity. Lyla's idea. Of course, she didn't want to argue with anyone from the Justice League due to their methods." Henry explained.

"We've known for sixty years that there are alien races out there, potentially being a threat to humanity and their very existence upsets the natural balance of the world, so that's what we're dealing with." Hamilton said.

"By killing off aliens or deporting them?" Kara asked sarcastically.

"We're nothing like Lilian Luthor, Miss Danvers." Hamilton assured her. "We're more like your DEO."

"And is anyone here an agent of a clandestine covert operation, who might have neglected to mention the fact?" Hal sighed.

"I'm Level 29 on World of Warcraft, does that count?" Cisco quipped as Barry and Hal snickered, Oliver and Henry chuckled while Batman rolled his eyes.

"Look, some of us here knew about Cadmus for a while." Laurel said.

"And after the whole Dominators thing and then the Nazis last year, Black Siren volunteered to go investigate anything shady, not from this world, that would get on Cadmus's radar." Slade said.

"And… since we're talking about Miss Lance, we lost touch with her." Hamilton said as a hologram of Earth turned on.

"What was she investigating?" Laurel asked.

"I don't know." Hamilton admitted. "We detected an unusual energy signature coming out of Eastern Africa. And it was not a signature known to human, so Miss Lance volunteered to investigate."

"And now you came to us, instead of handling this yourselves." Oliver drawled.

"It was her choice to go. And I did handle it myself. I went to Miss Lance's last known location." Hamilton explained. "But… no Black Siren, no alien, no alien signature, nothing. So, I decided it was best to bring all hands on deck."

"You decided?" Batman scoffed.

"You can trust him." Lyla said as she teleported herself into the station. "I vouch for him. He was a huge help during the Invasion of Dominators."

"Well, if Mr. Man in Black has some starting point or something of Black Siren's, I might be able to find her." Cisco volunteered.

"We're going to need very specific expertise and power. We need hunters, power, experts in alien tech." Batman ordered. "We take care of our own."

The Arrow Lair, Star City

"Look, why should we care about her?" Rene demanded as they heard the update from Oliver. "I mean, she might look like Laurel but she ain't exactly a saint."

"She's not evil, Rene and yes, she did hurt us but she's changed. No matter how much darkness there might be in others, in some of them is still a light and you don't turn your backs on them." Diggle explained.

"Remember what happened with Tommy?" Thea pointed out as Rene sighed, seeing their point.

Later, Africa

Batman, Green Lantern, Green Arrow, Wonder Woman, Atom, Mari in her Vixen suit, Deathstroke, Supergirl and Cisco entered the cavern as Deathstroke knelt down, while Atom scanned the area.

"Hamilton was right. There was an unearthly energy source here." Ray said.

"Unearthly as in, not from this Earth, I assume?" Mari asked.

"That's why I said the word. Unearthly." Ray quipped.

Bruce, Oliver and Slade were checking the marks and blood on the dirt and rocks. "Laurel was here. She knelt down. Turned on her foot."

"Then someone snuck up behind her. See that blood?" Batman pointed to the pile of rocks as he picked one of them and saw the blood.

"Blunt head trauma." Green Arrow said as Cisco touched the wall and saw a vision.

Someone in the shadows snuck up on Black Siren as she turned around before the man in the shadows raised his hands and a glow of light blinded Black Siren before she was pushed back as she hit her head and was knocked out.

"Who took her, Cisco?" Wonder Woman asked.

"I don't know." Cisco admitted. "I've never seen that guy before."

"We better hope for the best." Green Arrow said.

"And assume the worst." Batman protested.

"Assumption is the mother of all failures." Deathstroke pointed out.

"He's right." Green Arrow nodded. "If Laurel was dead, there would have been a body here and the trail would have gone cold."

"But it isn't." Ray said. "At least, not entirely. Gideon is getting some faint energy signatures. It's gonna take a while to track it, though."

"So, she is alive." Green Lantern nodded.

"She better be." Slade held onto his sword, gripping it tightly and worry about his teammate flooding. "Because she's the only leverage they have for keeping me from slicing them into tiny, bloody pieces that I would scatter all over the jungle."

Elsewhere

Black Siren woke up and groaned before she noticed that her hands were cuffed behind her back. And then she noticed that she was power-dampening collar around her neck, realizing what happened, remembering when Malcolm Merlyn from her Earth had kidnapped her and handed her over to A.R.G.U.S., where they experimented on her before Zoom broke her out. "Well, that's just great." She got up, furious as she yelled at the top of her lungs. "Hey! Anyone out there?! Hello! Let me out right now! When I get my hands on you, I'm gonna—"

"No need to yell." The man said as he entered.

"Oh, boy…" Black Siren muttered.

"How did you know what was in the cave, Siren?"

"You kidnapped me?!" Black Siren demanded.

"What would you have done in our position?" The other man beside him asked.

"If I were you, I would have run. And quickly. Because you don't know who I am or who are you messing with." Black Siren sneered.

"Save us those threats, Miss Lance. With the collar on, you can't as much as whistle." The man scoffed.

"I don't need my powers. Because when I get out of these cuffs, I'm gonna crush every bone in your bodies with my bare hands!" Black Siren snarled. "You don't know who I am or if I came alone or if I'm a decoy. And one thing you should know. I have friends. Allies. And they will find me soon. And when they will, you better prepare yourselves to get in a world of trouble."

"She's right."

"But you don't know who we are, either. You know, we call ourselves Intelligencia. A conclave of thinkers, you might say. I'm Hector Hammond and this is Professor Ojo."

"We've known about you and the Justice League and your doppelganger for a long time. We've been watching you. DeVoe was a fool to turn us down." Ojo said.

Black Siren tried to rush at them but was knocked back by some energy field as she groaned, groaning in pain as she hit the ground.

"You must think us so stupid." Hammond said. "Who sent you and what do you know of Spaceknight?"

"What?" Black Siren stared.

"If you want to make it out of here alive, being honest would be a good start, Laurel." Hammond insisted.

"I'm not telling you a thing, because soon enough, you're about to get your asses kicked." Black Siren growled.

"Your friends won't find you here. Our work will not be interrupted." Ojo said.

"What work?" Black Siren asked.

"You know what, we're gonna tell her everything." Hammond shrugged.

"Sure. Care to share with the rest of the class?" Supergirl quipped as she threw Hammond away and knocked him down on the floor as Green Arrow shot down two scientists as he, Deathstroke, Wonder Woman, Batman, Atom, Green Lantern and Vixen went out from the breach.

"You think you can stop us? We're much smarter than—" Ojo was cut off by Batman throwing an electric batarang, taking him down.

"Whoa, whoa." Hammond raised his hands. "It doesn't take a genius to realize we're outmatched and outnumbered. We graciously surrender and are willing to negotiate—"

Deathstroke punched Hammond in his face. "You should have thought about that before you kidnapped one of us and my friend."

"Laurel, are you OK?" Green Arrow asked as he turned off the force field.

"Well, a damsel in distress, rescued by heroes. A dream come true." Black Siren joked as they helped her on her feet.

"What's going on here?" Slade asked.

"I don't know." Black Siren admitted as she walked down the hall with them as they saw the incapacitated guards and scientists with an armor she had just found, lying on the table. "That thing… it's some kind of a power source from a distant galaxy or something like that. They call it 'Spaceknight'."

"We're gonna need to examine it further." Batman ordered.

"How did you find me?" Black Siren asked.

"That thing left an uncategorized energy source. We just followed the trail." Atom explained.

"I've never seen anything like it before." Hal said as he looked at the armor. "The Guardians may be able to help."

So, what do you guys think? Is it good? Is it bad? Should I continue?

Please review and let me know if you have been enjoying this.

With regards

Bl4ckHunter