A/N: Hey, everyone and I hope you're ready for another chapter!

But before that, remember I've issued a challenge to you all once again, to see about 3 more characters having adventures in Arkham. Lie Ren, the quietest member of Team JNPR and one of the most skilled fighters in the show, competent even without his weapons. Sun Wukong, the monkey-tailed, fun-loving troublemaker who can also fight without a weapon, plus his is one of the few weapons Batman would allow. And last, but not least, Penny Polendina, the adorable robot girl we lost too soon, given another chance to prove she's combat ready by helping Batman take down the escaped criminals.

With Ren, team JNPR will each have had an adventure with the Dark Knight. Sun can either learn some discipline from Batman or perhaps teach Batman how to lighten up. And we all need a little bit more of Penny in our lives. I leave it in your hands. Make us proud!

But for now, let's get back to Yang and Batman going old school on Penguin and his thugs! Get it? Because they're in a museum... Whatever, here we go...

Yang and Batman made their way deeper into the museum. They went through a door and saw a wall at the end of the hallway in front of them painted red, reading: "NEW RECRUITS THIS WAY!". "Wow, Penguin must really be excited for his new goons. He wrote the notice all in caps." Yang said as they walked up to it.

"This means that Penguin will have more thugs than before. Maybe dozens more. Stay on guard." Batman warned her as they continued.

Soon enough, they made their way into a large, open area that looks like it had been converted into a Gladiator Pit. No sooner than they arrive, another cop staggered out from the hallway upstairs reaching out for the vigilantes. "Help... Me!" He pleaded, before the sound of a silenced gun went off and the cop fell to the ground, dead.

"No!" Yang cried out in horror, glaring up at the chuckling Penguin, who had shot the officer with his umbrella gun. "Damn you, Penguin! I should've broken your other hand after Bruce Wayne broke your first one!" She snapped.

The two vigilantes readied their Ember Celica and prepared to unload on the diminutive crime boss, but he held up his good hand. "Ah-ah! I wouldn't do that if I were you. Show 'em what we got!" Penguin instructed. Then, an incredibly muscular thug, quite similar to Mr. Hammer, only missing the opposite arm, came down the hall Penguin had just come from, holding another officer in the air by the back of his neck.

"So, Batman. You here for the cops? Or the Ice-man? Or me?" Penguin asked, holding his arms out to the side and letting out a sinister chuckle.

"I was only here for Fries and the hostages. But now, I'm taking you down, too." Batman said darkly.

"Yeah! You'll wish a leopard seal got you instead of us when we get you!" Yang snapped.

"Well, aren't you to scary?" Penguin taunted, throwing his head back and laughing.

"Come down here and find out!" Yang snapped.

"Happy up here, thank you very much." He said, gesturing for one of his thugs to put a cigar in his mouth and light it for him, due to his free hand being unusable. "Now, listen. I'm what you might call a collector." He began to explain, before looking to the thug to take the cigar. "If somebody wants something, I like to think I've got it. And if I don't have it. I'll get it." He told them.

"Is there a rest stop between now and the point?" Yang asked.

Penguin rolled his eyes at this. "Jeez, Batman. These kids of yours keep getting less and less patient. So here's the thing. I've got a couple of cabinets back there with your names on them, just waiting to be filled. And, as luck would have it, here you both are. Standing just where I want you." He said, breaking out in more laughter. "So, what's it gonna be? You gonna be good and give up nicely?" He asked.

"Well, since you asked so nicely... How about you go suck a fish!" Yang snapped.

"You're not giving orders here anymore, Cobblepot." Batman growled.

"I was hoping you'd say that. As for the fish, I already got one, thank you." He said, a thug handing him some kind of fish, which he scarfed down whole. "Now, look around you, This horrible bunch of psychopaths are all begging to join up with me. Unfortunately, I only take the best. And today, the best is whoever can kill you." He told them, the gates opening up and allowing thugs to pour into the arena with our heroes. "Come on out lads! It's initiation time!" Penguin laughed as about 20 thugs rushed in to face the pair.

Background Music: "Blow Me Away" by Breaking Benjamin

Batman countered two thugs and sent them to the ground, before jumping towards a group of four thugs and moving between them, beating on them and knocking them to the ground, jumping and throwing a batarang into each of their faces to knock them out. He then launched his batclaw at another one and reeled him in for a clothesline, knocking him off his feet, before an elbow smashing on his mid-section sent him to the floor hard, knocking him out. He then performed a combat takedown on another thug. He then threw a batarang at one final thug, going for a ground takedown. He slammed his fist down on the thug's face just in time to see another thug about to punch him in the face, but just before his fist connected, a blast from Ember Celica sent him back, unconscious.

As this was happening, Yang had fired a blast from Ember Celica into the ground just behind a pair of thugs, basically sending them flying to her feet, where a good punch to the head took both of them out. She then ran up on the next thug and hit him with an uppercut, spinning and kicking the next two thugs down. She blasted another one away with Ember Celica, then threw a rear kick to take out another one. She then swept the feet out from the next thug, uppercutting him into the air and blasting him back down to the ground. She then ran to the next one, jumping towards and then off of him, throwing a round kick that knocked the thug she kicked into the one behind him. She then launched herself back into the one behind her, firing another shot to spin her around and take him out with a round kick.

She then noticed a thug about to punch Batman while he was distracted taking down a thug with a ground takedown, so she fired a round from Ember Celica to blast the thug just before he could hit Batman. "You owe me one." She said.

"You weren't supposed to do that, heroes! You're forcing me to break out the big guns!" Penguin snapped, firing at a large hanging cage above Yang, Batman tackling her out of the way of it.

"Consider us even." He told her.

"Eh. I could've dodged or taken it." Yang said simply.

However, their banter was interrupted by a strange growl as a Titan-enhanced thug stepped out of the cage. "Oh, he doesn't look happy to see you two. Good luck." Penguin laughed and left them.

Yang prepared to fight the beast, but more thugs then came pouring in, so she decided to take them on. Batman instead rushed at the Titan and used his cape to stun it, getting on its back and forcing it to move back and forth, taking out droves of thugs as it swung its massive arms around, forcing Yang to jump back so she wouldn't be taken out as well. The small thugs were dealt with quickly enough, at which point the Titan finally shook Batman off, only for Yang to blast it with Ember Celica, knocking him back into the electrified fence, stunning it. Yang then took this opportunity to rush in, deliver an uppercut, then blast the thug down with a shot from Ember Celica to the face, knocking it out.

End Music

Yang let out a sigh of relief when the Titan went down. "Whew. That could've been a... Titanic disaster! Eh? Am I right?" She asked Batman, who simply rolled his eyes.

He then put his hand up to his earpiece. "We found Penguin." He told Alfred.

"And what about Mr. Freeze. Have you located the cure yet?" The butler asked.

"Not yet. The situation is worse than we thought. It looks like both Joker AND Penguin still have supplies of the TITAN formula." Batman explained.

"They have what?! How did TITAN get off of Arkham Island? And what's going on here? Your suit's bio-reading are spiking a bit." Barbara Gordon, AKA Oracle, questioned as she suddenly joined the conversation.

"Hey, Babs! Nice to hear from you. I was getting lonely without another girl to talk to." Yang said.

"Nice of you to join us, Oracle. Alfred, bring Barbara up to speed." Batman instructed.

"Of course..." Alfred complied.

"But..." Oracle started.

"We'll be in touch." Batman said.

"Later!" Yang said.

The vigilantes then continued onward, unlocking another security gate to get on an elevator, only for the bottom of the floor above it to stop the elevator... at least until Batman blew it up with explosive gel. They climbed up onto the next level and blew up another wall, now in the hallway where Penguin had stood, taunting them.

They went through the next door into another large hallway where everything was iced over, they reached the end of the hallway, but the opening to the next area was blocked by a wall of ice. Thankfully, Yang easily got through it with a solid punch followed up with a blast from Ember Celica. They walked through the opening, only for Batman's arm to be frozen to the wall behind him and Yang was blasted in the chest, freezing her to the wall behind her as well. They looked up across the flooded room to see Penguin standing at the entrance to the iceberg lounge, holding Freeze's... well, freeze gun. "Stay where I can see you, heroes. You wouldn't believe the fight the old snow man put up. Still, I got what I wanted. And in the end, that's all that matter." He said, before he noticed one of the officers running across the sheet of ice and firing at him.

"Stop it! Leave him alone, you bastard!" Yang snapped, trying to fire a round from Ember Celica at Penguin, but in her frozen state, she didn't come anywhere close to him.

"Hold still, boy!" Penguin shouted, laughing maniacally as the cop stumbled and he finally connected a shot to the cop's foot, freezing it to the ice he was standing on and starting to crawl up his body.

"No... No!" The cop shouted in fear before he was frozen up to the neck.

The two vigilantes looked on in shock, before glaring back at Penguin. "When you're done in here, feel free to join me in the iceberg lounge so I can kick your ass again!" He told them, turning around and walking back into the lounge. "Enjoy the copsicle." He told them.

Batman finally ripped his arm free of the ice and Yang punched the ice covering her chest, freeing herself as well. "Are you alright?" Batman asked.

"Well, the hottest part of my body is now the coldest, but I'll be fine." She said. "Now, let's go save those cops." She said.

The two of them jumped down, right near the officer they watched Penguin freeze, but the ice around them quickly filled with cracks. "The ice seems unstable. We'll have to move carefully. And activate your density scanner." Batman instructed, breaking the cop out of the ice and grappling him back to the exit.

"Got it." She said, activating the scanner. She waited a few moments for Batman to finish talking to the cop, looking to him as he returned. "So, what's the story?" She asked.

"There's two more officers in this room. We'll split up and find them and any others. You go left, I'll go right. Let me know what you find. And don't try to go after Penguin alone. He's too dangerous with Freeze's weapon." He told her.

"I could still totally handle him." She said, receiving a glare from Batman. "Fine. I won't go after him. Let's just get going." She said. They slowly made their way towards the center of the room, but before the even got 10 feet, a massive shark suddenly rose from the water, breaking some of the ice and getting dangerously close to them, snapping twice, before descending back into the water. "What the?!" Yang asked in shock. "Okay, I know I took on Croc underwater, but sharks are where I draw the line." She said.

"Oh, sorry about that, heroes. Did I forget to mention my little friend down there?" Penguin asked over the intercom.

"Yeah, that would've been nice to mention!" Yang snapped.

"Meet Tiny. Who'd have thought a big fish would be so useful. Not me, that's for sure. He's like a mobile garbage truck. Whatever I drop into that tank just... Vanishes. Poof. Problem gone." Penguin laughed.

"Well, this just became a... fishy situation!" Yang joked. As if punishment for said joke, Tiny came back up and chomped off another piece of ice mere inches from Yang, descending back into the depths. "Oh, come on! Even the shark is a critic!" Yang snapped.

"Just keep moving." Batman told her, pulling down a small wooden raft with his batclaw and pulling it over to them, getting on and getting to the right side of the room with the series of rings to hook the batclaw to along the way.

"Alright, let's see what's behind door number two." Yang said, continuing on to the left side of the room, moving along slowly until she could use her batclaw and grapple to the walkway on the left side of the room. She then hurried through where she saw a trio of thugs waiting for her confidently. When she approached, she figured out why as security bars raised up and stopped her from passing.

"Aww, didn't we tell you that was gonna happen? Sorry, must've slipped our minds." One of the thugs taunted.

"Yeah, what are you gonna do now, lizard girl?" Another thug taunted.

"Just watch and find out." Yang said in annoyance, pulling out her sequencer and input the code: "Reptilia", ironically enough, approaching the thugs once again, their smugness turning to horror as she stood right where the bars should raise up to stop her, yet failed to do so. "Surprise!" She said, before blasting the thug in the middle, who wore body armor, with Ember Celica, blasting him back into the door and knocking him out and quickly beating down the remaining two thugs.

She then continued into the next room, observing some of the cases left for other villains, cringing a bit when she saw Harley's beloved, now stuffed, hyenas in one of them, before running and sliding under the partially opened security wall, sliding into a war room with a bunch of toys scattered in the middle to look like a battle, the tank at the end of the room revealing revealing the cold-blooded scientist, Mr. Freeze. "Whoa, doc. You're not looking so good..." Yang said worriedly.

"Please... Get me out..." He pleaded, just barely audible from behind the glass.

"I'm on it!" She said, hurrying around to the right side where there was a weakened wall that would allow her around back of the exhibit to free the frigid scientist.

However, no sooner did she reach the wall did a muscular hand shoot through, grabbing her by the throat, before the sickle-wielding brother of Mr. Hammer powered his way through it and flung Yang halfway across the room, drawing his sickle. "I shall cut you to pieces, Dragon girl." He said as 4 more thugs came out from where he emerged from and stood with him.

Yang blasted the two thugs in front with Ember Celica, knocking them out, launching herself at the thug behind the one-armed brute to the right, knocking him out with a haymaker, turning and launching herself back into the one now behind her with Ember Celica, driving her elbow into his gut, firing a round to spin herself and take him out with a round kick. She then began peppering the sickle-wielder with rapid blows, much like she had done to his hammer-wielding twin, only this time adding in shots from Ember Celica, quickly bringing the one-armed thug to his knees and delivering an uppercut to knock him out.

She then hurried around to the back of the exhibit and used her sequencer to open the case, freeing the ice man. He weakly staggered forward, before stumbling over the lip of the case, falling to all his hands and knees. Yang knelt down beside him and put a hand on his shoulder. "Doc, you okay?" Yang asked. Freeze may be a criminal, but no one deserved to be tortured like that.

"I need my suit... You know I won't be able to survive without it." He said.

"We'll work on getting it back to you. But right now Penguin's got your freeze gun. We need to get past it to take him down." Yang said.

"Do you expect me to tell you the weakness to my own weapons? Do you take me for a fool?" He asked.

"No. You're a smart man. So you know that if we can't stop Penguin, we can't get you to your suit and you can't help the people that need the same cure as Joker. Or your wife." Yang said, frowning as she thought about Nora. Both Freeze's wife and her dear friend back on Remnant. It was probably because of her hammer-wielding friend she felt as bad as she did for the woman Freeze married that shares her name.

"Don't speak of my wife, Light Dragon! Do not let this situation fool you. We are not friends." He snapped.

"We don't have to be friends. But right now, we need each other's help. Think about it, Doc. If you don't help us now, millions of people will die. Deep down, you're still a good man who wants to help people. I know you don't want that on your conscience." Yang told him.

Freeze sighed at this. "Your methods of persuasions are certainly different than Batman's. He likely would've ripped out my cooling unit." He said.

"Oh, trust me, I have plenty more effective methods than this. You just aren't in any condition to handle them." Yang said.

"There's a security override chip I installed into my suit to stop anyone from using my weapons against me." He told her.

Yang smiled at this. "Thanks Doc. You rest up. We're gonna put you to work on that cure as soon as you're back in your suit." Yang told him as she walked away. She then put her hand to her earpiece. "Batman, you there?" She asked.

"Yes. I just took down a group of Penguin's thugs holding the rest of the undercover police force hostage." He told her.

"Great. Hey, would Freeze's suit be in that room, too, by any chance?" She asked.

"Yes. What about it?" He asked.

"I just found Freeze. He said there's an override chip in his suit that can be used to disable his freeze gun." She told him.

There was a short pause before he returned. "I've got it. I'll meet you back at the Iceberg lounge." He said.

"I'll be there." She said, starting to head off, before stopping. "Better let the clown know, too, so he doesn't keep trying to kill Freeze before the cure's finished." She decided, putting her hand to the earpiece again. "Joker." She said.

"Well, well, my second-favorite blonde bombshell. How are you doing, hot stuff?" Joker asked, coughing a bit.

Yang shuddered at the clown's attempts at flirting, before getting back on point. "I'm still underage, you pedo. Anyway, we found Freeze. He didn't go dark on you. Penguin captured him and was holding him in a stuffy museum case cranked up like a hot day on the beach. He'll be back to work on the cure soon, so try not to kill him." She told him.

"Aww, but the thought is so tempting." Joker fake-pouted, before laughing. "Just kidding. This is why I like you better than the Bat. I never hear a peep out of that guy. It's like he doesn't want to talk to me." He said, laughing again, at which point Yang hung up.

"Can't imagine why." She said, before heading to the lounge like she and Batman had planned. They each got on one of the small rafts Batman had knocked from the ceiling, pulling themselves towards the Iceberg lounge with their batclaws, before Tiny suddenly rose up from the water below and began chomping down on Yang's raft. "Hey! I'm not on the menu, fish stick!" She snapped, throwing a haymaker into the beast's snout, backed by a round from Ember Celica, sending the shark back into the depths below, the two of them reaching the lounge with no further problems.

"Are you alright?" Batman asked.

"Sure. The big guy just bit off more than he could chew with me!" Yang said confidently, before the two continued to the lounge, ducking behind a wall as Penguin fired at them.

"You go right and draw his fire. I'll go left and get in range to disable Freeze's gun." Batman instructed.

"You got it!" She said, running to the right as ordered and firing at penguin, before diving behind the cover of the next wall.

Unfortunately, due to the limited time Yang had to fire, she aimed too high and Penguin simply ducked under the shot. "Ha! Is that all you got, Dragon? Or are you finally out of flame?!" Penguin asked, continuing to fire as she poked out from cover, tried to fire at him or when she leapt to the next wall.

Meanwhile, Batman made his way around and got in range to use the device, shutting down the weapon just before Penguin noticed him and took aim. as the crime lord tried to figure out what happened, Batman ran in and delivered a massive uppercut, sending Penguin into the air and down to the lower floor of the lounge. "You're finished, Cobblepot." He told the one-eyed criminal.

"No! I'm sorry! Don't hurt me!" Penguin pleaded.

Yang suddenly landed behind him. "Why shouldn't we? You've hurt enough people here." She snapped, grabbing Penguin and lifting him off the ground.

"Because I got one last bargaining chip!" Penguin declared, before pulling out some kind of detonator, blowing up the massive iceberg Batman stood on, sending him into the basement of the iceberg lounge.

"Batman!" Yang cried out, punching Penguin in the head and knocking him out, before running to the edge, looking down to see Batman getting up. "Are you okay?" She asked.

"I'm fine." He said, before noticing a familiar figure in the room. "Grundy." He said.

"What!? Do you need help!?" Yang asked.

"No. He's unresponsive. Without an electrical source, his heart won't beat and he will stay 'dead.'" Batman explained.

"Nice. Then let's deal with Penguin and get back to Freeze." Yang said, Batman grappling back up and the two collecting the unconscious crime lord.

A/N: Another chapter done. I hope you all enjoyed this chapter. I know I skipped the Grundy fight, but in this case, it really was 100% avoidable. I mean just like what happened, soon as Penguin pulled out the detonator, Yang would've just knocked him out. Or heck, when he saw him pulling out the detonator, even Batman could've just pulled out a batarang and knocked it out of his hand.

Also, thank you to SargentEpsilon for the idea of our heroes notifying Joker about why Freeze went dark, so now Freeze and, by extension, the cure, would be in less danger, because even though we know everything was fine, the heroes would want to minimize the risk to the cure, so making sure Freeze wasn't a target would be a big step in the right direction.

And lastly, for anyone that may think Yang went too easy on Freeze, while we know she's not above toying with and lightly torturing thugs like Junior, Freeze was practically dying in that scene, so I think Yang would hold herself back and not want to hurt the doctor.

But again, thank you for reading, I hope you enjoyed and please consider taking one of my challenges. And keep an eye out for the next chapter.