Disclaimer: I don't own HP nor Teen Titans.
'Thoughts'
Harry talking to his father or Raven, Trigon talking to his children, Raven talking to Harry or Trigon.
(With the Teen Titans)
With a smirk the demon attacked. Some of his siblings joined in. It was four against four. The titans fight back. The demons were shocked that they were getting their asses whooped by non-demons. The one fighting Robin was the most shocked since he knew that Robin was human and he couldn't believe that a human could get the upper hand on him. Soon the demons they had been fighting had been knocked out.
Once they were down the four began searching for Raven, Harry, and Trigon. It didn't take them long to find Trigon. He was sitting on their tower.
"Dude!" Cyborg complained. "Does he know how long that tower took for me to build."
"Don't think he cares, Cyborg." Robin said.
They were soon in front of him. The demon chuckled when he caught sight of them.
"So my daughter managed to save you." He said. "Fool. You'll die in the end."
"We managed to take down four of your children." Beastboy said.
"They were weaklings then." He said. "You'll find that I'm not like those four. I am stronger than all my children."
"They were his kids?!" The green animal shifter asked in shock.
"Unfortunately." He said. "No matter."
He lifted his enormous arm and aimed it at the titans. He then sent a ball of black energy at them. Just before it could hit them a black shield formed around the teens. It absorbed the energy ball. Everyone was surprised by that.
"Raven must have given us some of her power." Cyborg said.
"Then let's use it." Robin said.
"Okay." Beastboy, Cyborg, and Starfire agreed.
They held each other's hands. "Azarath Metrion Zinthos."
Raven's magic left them and shot at Trigon. The man laughed and waved it off. He attacked them once more. This time it hit them and sent them flying. They all hit a building.
"Nice try." Slade said as he walked over to them clapping sarcastically.
"Slade!" Robin hissed.
"Oh calm done Robin. I'm here to help."
"What?" Star looked confused.
"Yeah right." Beast boy snorted.
"Liar." Cyborg said.
"You caused all this and now you need to help?" He asked in disbelief.
"True. I made a deal with Trigon. I kept up my end of the bargain and Trigon didn't." Slade said.
Before more could be said he threw a bomb at a lunging demon. Two seconds later the demon exploded. He then turned back and said something that shocked them.
"I know where Raven and her brother are. They are your only chance to take Trigon down." He said.
"Where are they?" Star demanded.
"Why should we believe you?" Robin asked.
"Why not? I'm your only chance and hey it is the end of the world. What do you have to lose?" He said.
"Fine. Take me to them." Robin said after thinking it over.
"Follow me then." Slade said. "The rest should stay behind and distract Trigon."
"Fine."
They split off after that. Robin and Slade went to Hell and the other three ran off to distract Trigon. The titans all hoped that this plan worked.
(With Harry and Raven)
Harry and Raven decided to meditate. There isn't much else to do and they know they are being watched. Their siblings would love a reason to attack them. They were bloodthirsty monsters afterall. The two weren't going to give them a reason.
James, Harry's other father comes to him. Not physically of course. No was in Harry's head. Harry stares in shock.
"I'm so sorry baby. I'm sorry that I couldn't be here to protect you." James said.
"It's okay daddy." He cried before running into his father's arms.
"I can help you now." He said.
"How?" He asked.
"By finding your inner dragon and using those powers." He said. "You are part electrical dragon and because of that you have a dragon form and the ability to wield electricity."
"Okay."
"Good. Now take a deep breath." James instructed. "Good. Now try to feel the electricity in your blood. Follow it. That is your magic."
Harry did as he was told. He could practically see the sparks of blue behind closed eyelids. His siblings did. They wondered what was going on. Before they could reach they were hit by blue electricity shooting out of their brother. The electricity kills them.
Raven and Harry heard their siblings scream and they opened their eyes. To their shock all the demons watching them are dead.
"What happened?" Raven asked.
"My dad, James, came to me while I was meditating. He was teaching me to call forth my dragon powers." Harry explained.
"Whoa. We better move. Trigon won't be happy once he learns what just happened." She said.
"Agreed."
The two left the area they were at. They then hid so that their demonic father couldn't find them.
(With Cyborg, Star, and Beast boy)
The three made up a plan. They were going to attack Trigon separately. They then put that plan into action. His demonic children attacked them but he took them down. It didn't take long for Trigon to get annoyed. He made evil copies of the three.
Those evil copies advanced the three. They split up and took on their evil selves. Unfortunately their evil selves predicted their moves and avoided their attacks. The titans were getting their asses handed to them. All hoped that Robin returned soon, with Raven and her brother.
(With Slade and Robin)
Slade and Robin arrived in Hell. They jumped into the boat floating on the river of lava. Slade took an oar and began rowing. The two talk for a bit. That talk ended when enemies attacked them. The enemies were coming out of the lava.
The two dodged the attacks before preparing to fight. They worked together and took down many enemies. One managed to knock off Slade's mask. Robin saw that instead of a face there was a skull. That was when Robin realized what was going on.
"You joined Trigon to get your body back." He said.
"I did." He agreed.
"You only agreed to help me so that you can get it back yourself." He said.
"Yes."
"Do you actually know where Raven and Harry are?" He asked.
"Yes. They are that way." He pointed. "This is where we take different paths."
"Fine by me." He spat.
Robin walked off in the direction Slade said Raven and Harry were. He fights monsters along the way. It was a lot easier since he didn't have to worry about falling into the lava. It felt like ages before he spotted them. They were fighting another demon. He was shocked to see Raven as a child.
Harry shot off some more electricity and the demon died. They turned to see Robin.
"Raven." The leader of the teen titans breathed out.
"Do I know you?" She asked."It's me, Robin."
"Who?"
