Disclaimer: I don't own Harry Potter or Teen Titans.

'Thoughts'

Harry and Raven talking telepathically. Harry talking telepathically to Trigon.

Raven was soon in place. It didn't take long for it to happen. Symbols appeared on her body. They detached and formed a circle around her. They swirled around her as her body disappeared. It was replaced by a giant portal.

Trigon stepped out. The sky was as red as blood. He laughed as he summoned many of his children. They arrived laughing. Harry felt the control his father had over his body leave as the demon looked at him.

"Your sister is still alive. Disobey me and she's dead." He warned him.

"Yes sir." He bowed.

"Good." He smirked. "She's in one of the lower levels. Change into your demon form and leave. Just remember you are being watched."

"Yes sir. Thank you sir." He bowed again.

Black hair turned pure white. His skin turned blood red. Two more eyes formed. Green irises and even his pupils disappeared. A glowing red filled the eyes. He grew a couple inches taller. His tails turned black and lengthened. Two sandy color horns grew on his head. They were short but very sharp.

Once he finished changing into his demon form he left to go find his sister. He could feel his siblings watching him. They hoped he would mess up so they could play with him. He didn't change back to his human form and luckily his sister recognized him. His father had a wicked sense of humor. He had left Raven alive but she was a small child.

(With Slade and the demons)

After Harry flew off he went over to Trigon. The demon looked at him in amusement. It made the dead man want to punch the demon but he refrained.

"You've ended the world. I did what you asked. Now fulfil your promise." He said.

The demon king laughed. "Stupid human. I only kept Raven around to not only torment her but my son as well."

"You had no plans at keeping your promise." He realized.

"I did not." With a wave of his giant hand he sent Slade flying. "Have fun children."

The demons laughed before taking off. They began destroying anything they could. Trigon went over to Teen Titans tower. He made it into his throne. He sat down and watched the destruction in glee. He finally took Earth over. After so many decades had passed he had finally won.

(With the remaining Teen Titans)

The four remaining titans woke. It was a miracle considering they shouldn't have. They looked around in confusion. What they saw horrified them. Star held a hand to her mouth as she took it in. The boys had their hands clenched into fists.

The sky was blood red. Buildings were destroyed. People seemed to be petrified in stone. Star teared up.

"Oh friends this is horrendous." She said.

"We know Star." He placed a comforting hand on her shoulder. "Raven must have protected us."

"It makes sense." Cyborg agreed. "It must have been when she knocked us out."

"We promised to protect her." Beastboy reminded them bitterly.

"I know BB." His half robot friend said. "We'll fix this and bring her home."

"And save her brother." Star added.

"Yes we will. Let's go kick some demon ass." Robin said.

"Well, well, well. Looks like my human loving sister left me some lay things." A demon purred as he walked over to them.