They arrived at the museum and got out of the van. There were people running out of the museum. Some were screaming about something demonic inside. Others were shouting that the museum was haunted.
"Must be the place." Jet said. "What's the plan?"
"In order to have a plan," Jason said. "You must first know the situation."
They entered the museum just as the last person ran out. They had the whole museum to themselves... and to whatever was inside.
"Hello!" Sonic yelled. "Any demons in here?"
No answer.
"You really expected that to work.?" Blaze asked.
"Heh. Not really." Sonic said.
The entered a room filled with skeletal dinosaurs.
"Hey!" came a familiar voice. "You made it!"
Wave jumped down from the T-Rex head and landed in front of the group.
"It's true." Blaze gasped.
"Hey, guys." Wave said.
"Wave!" Tails said happily. Then he got a good look at her. "You look terrible."
"We have our brave hero here to thank for it." Wave said, eying Jason.
"Look," Jason said. "It wasn't my fault."
"Of course it wasn't." Wave said. "If it wasn't for this Emerald, I'd be dead, no thanks to you."
"Emerald?" Jason asked.
Wave held up the jewel on her necklace. "I just found out that that's what this is. If I didn't have this, I'd be dead right now."
"Wave..." Jason started. "I'm-"
"Enough talking." Wave said, kicking Jason in the stomach. He fell backwards, knocking over Sonic and Knuckles. "More fighting."
"Wave," Blaze said. "Don't do this."
Wave threw a punch and Blaze blocked. She then grabbed Blaze's wrist and threw her out the window. Wave jumped out after her. Blaze stood up in the street and noticed a car coming. She moved out of the way right when it zipped past. Wave approached.
"Don't make me do this, Wave!" Blaze yelled.
Wave didn't stop. Blaze launched fireballs at her. Wave held out her hand and a sword formed in it. She blocked the incoming fireballs.
"Where'd you get that sword?" Blaze asked.
"I guess I must still have some of Mephiles' DNA inside me. That means I still have my dark powers from before."
"This isn't good." Blaze said.
"Not for you." Wave said. "But for me, it rocks!"
She raised her sword and brought it down in an attempt to chop Blaze. Jason slid past Wave and blocked her attack. Jason stood up and looked at Wave.
"Well, well, well." Wave said.
"Stop this." Jason said.
"I don't think so."
Wave started launching attacks and Jason blocked them all. Sonic sped up behind Wave and tried to attack. Wave kicked him back and another sword formed in her other hand. She was now fighting Jason and Sonic. Sonic launched a flurry of attacks and so did Jason, but Wave kept on blocking. When they stopped attacking, Wave jumped in the air and kicked them both over.
"You guys are so weak." she said.
Sonic stood up and tried to strike Wave but Wave stepped out of the way and swung her her swords, cutting Sonic's arms and part of his back. He let out a yell of pain before falling to his knees.
"You've gone to far." Jason said.
He quickly stood up and punched Wave in the face as hard as he could. She stumbled backwards and put her hand on her cheek. She looked at her fingers and saw blood.
"Wow, Jason." Wave said. "I'm impressed. You actually hit me."
"You're not yourself." Jason said. "I put my team before anything else. When you hurt one of my teammates, you're askin' for it."
"Hmm." was all Wave said,
She didn't pay any attention to the cut on her cheek, which was bleeding a little. Looking at her like this made Jason upset. He hated to see her hurt but he had no choice.
"Wave." Jason said. "Please stop. I don't like hurting you."
"Too bad." she said.
She launched another attack with both of her swords. Jason blocked some of them with his sword and dodged the others. Both Wave and Jason swung a sword at each other. Jason's sword cutting Wave's arm and Wave's sword cutting Jason's leg. The two fell to their knees.
"This is getting us nowhere." Jason said.
"You will give me the Emeralds, Jason. One way or the other."
"Not like this." Jason said. "Not when you're inthis condition. Who knows what you'd do once you got your hands on them."
"That's none of your business." Wave said. "But if you refuse, I'll just have to kill you."
She slowly got up and walked over to Jason. She raised her sword. Right when she was going to attack, the Freedom Fighters' van came out of nowhere and swerved, knocking Wave away from Jason. The front passenger side door opened.
"Get in!" Blaze said.
Jason got Sonic and piled into the van.
"Step on it!" Jason said.

Blaze stopped the van right before it was going to hit the garage wall and everyone got out quickly. They all started to run upstairs.
"JASON!" They all stopped and turned to the front doors. Wave was standing there. She had cuts all over her. Some blood was smeared on her arms and legs. "WE'RE NOT FINISHED!"
Wave launched a dark energy sphere at Jason, knocking him away from the group. Wave ran for him, both swords out, making a screeching noise as they scraped the metallic floor. Jason rolled out of the way as Wave thrusted her sword into the floor. Jason kicked the sword as hard as he could and the sword vaporized into a cloud of smoke. Since Wave was using the sword as support, she fell to the floor. Her and Jason quickly stood up. Wave swung her sword at Jason's neck but Jason held his sword up, blocking it. He went for an attack and so did Wave. Jason's attack was harder and knocked Wave's sword out of her hands. Not meaning to, Jason's sword cut Wave's hand and formed a line across her legs. More cuts to add to her collection. She fell to her knees, breathing hard. Jason threw his sword aside. Wave looked up at him and her sword disappeared in a cloud of smoke.
"This isn't over." she said.
"I know." Jason said.
Wave slowly got to her feet and made her way out the front door. Jason watched as she left, with an urge to make sure she was alright but remembered she was evil. Then he thought, what the heck, and went after her. Wave stumbled down the front steps and fell to her knees.
"You okay?" Jason asked, kneeling down next to her.
"What do you care." she said. She slowly got to her feet. "Now back off, Jason. We're enemies, remember?"
She walked away, clutching her left arm, leaving Jason behind to think about things.