Chapter 8: Killer Croc

After they destroyed the TITAN lab to cut off Joker's supply, Batman found out that TITAN itself was made from plants mutated by Dr. Young. Which mean there could be an antidote for the TITAN formula as well. After minutes of walking through the garden, they made it to the garden house where Poison Ivy would possibly be. And they were right on track, she was there after making a few arrangements of her own. There were more plants and even some of them had teeth. They walked first, making their way to Poison Ivy who was petting her sweet plants.

"It's alright, darlings." she said soothingly. "I'm here now, my babies. Yes, I know they've found us, but I won't let them hurt you. I'll kill them if they do."

"Ivy." Batman responded calmly. "I know Dr. Young mutated these plants to produce Venom."

"Yes." she chuckled. "And I've already heard it through the grape vine the evil woman paid the price."

"If you want someone to blame, blame Joker. He put her up to it." Thunderhead countered one step ahead of Batman. "The clown doesn't like no for an idea."

"We need your help create an antidote." Batman said as Poison Ivy raised an eyebrow

"Why should I?" she asked. "Let Joker have his fun, I'll enjoy watching you squirm." her grin went wide when she looked at Thunderhead and walked toward him, while a vine was slowly approaching Batman from behind. "And you. My babies told me all about you. How you can control lightning, water and ice by your command. By Young's hand not doubt." she moaned strolling her finger down his body. "I'll give her credit, she found one fine specimen of a man." she teased only for Batman to snap the vine behind him as Ivy let out a shriek, gripping her head and fell to her kness

"You've been in the dark too long." Batman said as he walked over to her. "Unless you want your plants to be in pain by TITAN, you better cooperate."

"There's a plant growing deep in Arkham Island." she explained. "Only it can counter the effect of this TITAN strain that troubles you much."

"Where do I find it?" Batman demanded sternly

"Oh... it's in Killer Croc's lair." she said with a slight chuckle in her voice. "You didn't think it would be easy did you?" Batman and Thunderhead leave as the dark knight turned his head at her

"Go back to your cell, or I'll be after you next." he warned

"I'll be waiting." she said as they left the room.

"You do she won't go back to her cell, right?"

"Obviously." Batman said. "We need to find Croc's lair."

"I know where it is. It's right below the transfe room back in intensive treatment. There's an elevator that goes right down to an old sewer. The guards drop meat down there there to keep him eating."

"How do you where he is?" Batman asked Thunderhead sternly

"I've been here before." he answered

"Let's head back to intensive treatment, we need that cure soon."

After they went back to intensive treatment and made their way down to the elevator in the transfer room, Batman and Thunderhead were being taken down to the old sewers of Arkham as they split up to find the plants in Croc's lair. The dark knight went left while Thunderhead went right, desperate to find an antidote for TITAN and also to stop Ivy's plants from growing out of control. Then suddenly he heard growling and also snarling, and that's when Thunderhead knew it was Killer Croc. Ethan followed the sound of Killer Croc above him as he spotted human crocodile himself, clearly searching for the dark knight as he stopped catching another scent. Killer Croc growled while he balled his fists up, with Thunderhead sliding down on conjured ice like a water slider as he landed on a wooden float.

"Though I caught your scent." Croc growled, glaring at him

"I know I caught yours." Ethan joked, only for Croc a chunking pillar at Thunderhead as he dodged with debris falling off. "Well this wasn't nice. Bad crocodile."

"I will skin you and I will eat your bones!" he shouted with Thunderhead creating an ice copy of himself as Croc attacked it, remaining frozen until Ethan hit Killer Croc back with a ice slegehammer. Killer Croc fell into the water a hit from the ice hammer, only for him to erupt out of the water as he roared at Thunderhead.

"We'll see about that, won't we?" Ethan said getting into a fighting stance

Killer Croc charged directly at Thunderhead and grabbed him, crashing out of the sewers and into a storage basment. Croc was about to crush Ethan's skull until he launching a gaping ice fist, sending him up above Arkham as he landed on the roof to intensive treatment where a helipad being presented. Thunderhead emerged from inside the ice fist as it evaporated into water as he launched it at Killer Croc, who was attempting to rush toward him. Croc leaped away and used his strength to grab a gas tank, aiming it Ethan. Thunderhead countered by shooting a electric bolt at the gas tank, having it exploded in front of Killer Croc as he was staggered back. Thunderhead delivered blows and hooks to Killer Croc's stomach, only for the human crocodile to grab and slam him to the ground as Croc went to bite him with his fanged jaws. Thunderhead pushed Killer Croc's reptilian mouth away in order to prevent to bitting him as the crocodile snapped his mouth with every attempted bite, only for Ethan to headbutt and along the way sent a double kick his way.

Croc decided to make a groundpounding blow to the floor of the roof as Ethan evaded away from the attack, quickly dodging a slashing charge from Killer Croc. Killer Croc finally went to one last gas tank as he prepared to launch it at Thunderhead, only for said hero to shoot it witn an electric bolt with Ethan giving Croc a flash kick along the way. A hulking reptilian hand grabbed Ethan's leg as he was pulled aside as him and Killer Croc were now free falling to the ground. Since they were right to the Gotham ocean, Ethan turned himself to water as he landed on the ground safely while he conjured a mini tidal wave of water behind him. He launched it Killer Croc falling in the air, with it spiraling Croc around as Ethan surged lightning causing him to fire it inside the mini tidal wave he had Killer Croc in. Croc was moving around, gargling in short agony as Thunderhead unleashed the tidal wave back inside the ocean leaving only a weakening Killer Croc coughing up water. He was given a right across the face by Thunderhead who knocked him out cold.

"I win." Ethan said as he frozed Croc in place like a ice sickle, leaving the scene to find Batman