I DO NOT OWN BATMAN, ARKHAM ASYLUM, ARKHAM CITY, OR THE TEEN TITANS!

Catwoman and Robin had followed the green figure, identified as Killer Croc, to a mysterious brick wall located underneath the Iceberg Lounge. A green question mark was engraved in the wall. Robin put explosive gel on the question mark, and within seconds the wall was gone and replaced with a door.

"Jackpot!" Said Robin, a grin forming on his face.

The Titans had finally arrived at the museum, and were greeted by Penguin being thrown out the door by Two-face. Two-face noticed the new guests and smiled.

"Ah, it's about time you've arrived!" He exclaimed, aiming his bazooka at the Titans.

Raven threw up her hands and took the gun out of his hands with her magic.

"Hey! No fair, bitch!" Roared Two-face.

Cyborg ran forward and delivered a punch to Two-face's gut. Two-face fell to the ground, clutching his stomach and muttering something under his breath. The Titans entered the museum and noticed Nightwing taking cover behind a statue while the two gangs fired at eachother. Raven muttered under her breath and a huge hand flew from her chakra, separating the two gangs. Starfire flew forward and began launching starbolts in both directions. Mini exposions took out most of the thugs, while the rest ran away. Raven grabbed Beast Boy by the hand and beckoned for him to follow her to an unknown location.

Robin and Catwoman were inside a weird room covered in question marks. Down the hall, Robin noticed the Riddler looking at a computer screen. Robin decided to sneak up behind him. He took out his bo staff and began to sneak up behind Riddler. Catwoman stared and watched with a amused expression. Just then, a cage dropped down on Robin and Catwoman. Riddler continued to look at the computer screen, but spoke to the heroes.

"Nice try, but you'll have to try harder than that." Said Riddler.

Just then, out of the shadows, Batman leapt out at Riddler, knocking him to the floor. Riddler stared up at Batman in horror.

"How? How did you escape?" Cried Riddler.

Batman smiled at Riddler.

"I always have a lockpick with me, Nygma." Said Batman, as he reached down and delivered a powerful punch to Riddler's head, knocking him out.

Batman walked over to the cage holding Robin and Catwoman captive, and sprayed his explosive gel on the bars. He urged Robin and Catwoman to step back, as he was about to blow the bars away. Just then, Killer Croc came behind Batman and wrapped his arms around him in a crushing manner. Batman struggled against Croc's grip, but was unable to break free.

"This is the end for you, Batman!" Growled Croc, menacingly.

"More like the end for you!" Roared Beast Boy, as he and Raven entered the room.

Beast Boy turned into a rhino and charged Croc, knocking him into the wall, and freeing Batman. Batman then detonated his explosive gel, freeing Catwoman and Robin. Killer Croc grabbed Beast Boy by his horn and lifted him off the ground.

"I will break you like Bane broke the Bat!" Roared Croc.

Raven chanted her mantra, and a black globe engulfed Croc.

"I think not." Hissed Raven.

Beast Boy was released from Croc's grip and reverted back to his human form. Raven threw Croc through the wall, making a huge hole.

Nightwing, Cyborg, and Starfire had managed to defeat Two-face's men, along with Penguin's. They retreated outside to apprehend Penguin and Two-face, but to their horror, Two-face was gone. Nightwing glanced over his shoulder and noticed Two-face climbing a ladder to the top of the museum.

"You guys take care of Penguin, I'm going after Two-face." He declared.

"Be careful, Dick." Said Starfire.

Nightwing nodded, than gave chase to Two-face.

Black Mask walked down the Bowery towards the museum, well aware of the current battle going on. He snuck past Cyborg and Starfire, unnoticed, and climbed the ladder.

Nightwing confronted Two-face atop the museum.

"Give it up, Harvey. It's over." Said Nightwing, defiantly.

Two-face pulled out one of his guns and shot Nightwing in the arm. Nightwing let a gasp and covered the wound with his hand.

"Wasn't expecting that, were ya?" Asked Two-face.

He took aim for a shot to Nightwing's head, but was then shot in his own arm.

"And you weren't expecting that, you son of a bitch." Said Black Mask, gun aimed at Two-face.

Nightwing glanced at Black Mask, and jumped towards him, one hand holding an escrima stick. Black Mask grabbed Nightwing by the wrist, and delivered a knee to Nightwing's ribcage. Nightwing fell to the ground, gasping for air.

"I don't think so, kid." Said Black Mask, pointing his gun at Nightwing.

"Sionis, stop!" Said Batman, as he glided to the roof of the museum.

Black Mask looked over at Batman in horror. Batman studied Two-face's wound, then saw Nightwing on the ground.

"Another time, perhaps?" Asked Black Mask.

Black Mask turned around and ran towards the ladder, making his escape. Batman ran to Nightwing's side. Within minutes, Cyborg, Starfire, Robin, and Catwoman joined him on the roof.

Beast Boy and Raven were in Riddler's lair continuing their battle with Croc. Raven decided to finish the battle.

"Azareth, Metrion, Zinthos!" She screamed, as a ball of energy engulfed Killer Croc and threw him outside.

Killer Croc got to his feet quickly, and realized that he could escape. He turned around and tried to make a run for it, but Beast Boy came outside and turned into a T-Rex. He ran after Croc, and after catching up to him, picked him up in his jaws, and threw him upwards. Croc landed on his back in front of the museum, finally unconscious.

Beast Boy and Raven joined their friends on the roof of the Museum. Beast Boy gawked at the sight of Batman. He raced forwards and threw his hand out to shake the Dark Knight's.

"It's nice to finally meet you, Batman!" Exclaimed Beast Boy, happily.

Batman smiled at Beast Boy, and shook his hand. Raven noticed that Nightwing had a bullethole in his arm, and began to heal him. Batman took notice.

"I've gotta go." He said.

Robin stepped forward and frowned.

"Why?" Said Robin.

"I need to get Black Mask. I don't think this is how it ends." Said Batman.

Then he took off.

Batman landed in front of the Sionis Steel Mill. He walked towards the door, and was about to open it, when a familiar voice was heard from behind.

"Where do you think your going, Bat-creep?" Asked Harley Quinn.

Batman turned around, and was met with Harley jumping on him, stabbing him in the leg. Batman let out a groan of pain as he fell to his knees. Harley was about to deliver another stab, but then the knife was taken out of her hand by a rope held by Catwoman.

"I knew you'd be up to something, Quinn." Said Catwoman as she walked towards Harley.

She nodded towards Batman to go on with his mission. Batman got to his feet, and entered the building, weakened by the knife wound, but not entirely.

Catwoman looked at Harley, angrily.

"Jokers dead, Harley. It's over for you." Said Catwoman.

Harley leapt at Catwoman, and threw her to the ground.

"I'm gonna kill you, bitch!" Screamed Harley.

Batman was inside the Steel Mill and noticed a group of thugs walking around. Then he noticed Black Mask, hiding safely in his office. Batman's eyes narrowed.

"This is going to be fun." He muttered.

TO BE CONTINUED...