Disclaimer: I own neither Danny Phantom nor Yu Yu Hakusho.

This was written as a gift-fic for misaoshiru, the 100th reviewer of The Ultimate Hero, the fic I am collaborating with moonymonster on. She requested a continuation in which Yusuke met Danny. Please check TUH out. And review. Because reviews are love.

Adopted crossovers:

DP/Labyrinth – Author: Angelic Gargoyle Artemis, Title: Labyrinth and Danny Phantom

DP/Yu-gi-oh – Author: Laryna6, Title: Shadow Spirits

The respective chapters have therefore been taken down from this fic due to ff . net's rules against double posting. If you wish to read them and their contination, find them on the profile page of the adoptee.

Please, adopt a plotbunny? Continue this fic?

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Danny's throat was grabbed and he found himself slammed against the wall. "Well, if it isn't Mini Me." The… thing that wasn't him and was never going to be him laughed. "Give it up, you're five years to early to fight me. Ugh!" He was slammed against the wall, crushing Danny, who managed to go intangible while he was distracted.

"Valerie? It's a pity I have to let you live out of respect for my past," Danny heard him say gloatingly from the other side of the thin wall.

"Let me live? I don't know what you're on, ghost, but you're the one who needs to worry about getting their butt kicked!" Danny heard her suit's weapons charging up and phased through the wall. "I'm going to tear you apart molecule by molecule!"

He was going to have to let her live? That's right, Valerie had still been around in that horrible future. That meant Phantom would have to pull his punches, try to knock her out of the fight. That would give her an advantage: it was harder to capture than kill.

They were going to need every advantage they could get. Danny phased through the wall and took off, trying to get as far as he could from home. Good thing Jazz was still at Harvard.

Come on, Vlad, I hope your cameras are catching this!

Who would have thought that he would want his arch-nemesis to get his butt over here and lend a hand? But Vlad wanted him to join him, and that meant he needed him alive. He'd tried to replace him with a clone once, but the stronger Danny got the more Vlad sort of almost respected him. By now Vlad had decided he wasn't going to settle for less than the real deal.

He should show up to find out what was going on soon. Unless he decided to sit back and watch the show to study him until the last minute and charge in like the cavalry.

He was following him, Danny saw when he glanced back, firing ectoplasmic bolts at both him and Valerie, who was following him.

He screamed suddenly as Valerie got in a good hit. He had to hand it to Technis, he built a good suit. A suit that was useless against Technis himself, but then nothing was perfect.

He arrived at the park and stopped. Good, the area was deserted. The news channels would have reported a ghost fight and people knew fights ended up at the park. He'd gotten a lot of experience at herding ghosts here.

Valerie pulled up beside him. "So who is this ghost? You acted like you recognized him. Another of Vlad's clones?"

"No, worse."

He shouldn't have taken his eyes off him. They were hit by the ghostly wail. Danny immediately started to wail back, hoping the sound waves would cancel each other out, but no dice.

He tried to resist it, but eventually both of them were pushed to the ground, Valerie's suit losing power.

Danny tried to get up but he grabbed him and hit him with some sort of red handful of energy. Danny screamed and his body jerked as he turned back to human. This must be some version of that device Vlad had used up in the Rockies.

"Danny!" Valerie yelled. Her suit could barely move it was so drained. She tried to take it off but she couldn't do that either, watching as Danny fell to the ground.

His older self laughed. "I'm still here. Which means all I have to do is track them down and kill them. Slowly this time. You will become me." His boot was about to crash down on Danny's chest.

"Oh no he won't! Rei gun!" A blue blast knocked him off Danny and slammed him through several trees.

That… wasn't Vlad. Or Clockwork. What had happened to Clockwork? He was always a dozen steps ahead, certainly he wasn't dead.

"You okay? And you can understand me, right?" A black haired Japanese man stood over Danny.

He tried, but "I can't go ghost. And yeah. Valerie? Are you okay?"

"Can't get this damn armor off. It's completely out of ghost energy!" The man knelt next to her and touched her shoulder. His hand started glowing and it looked like he was transferring energy.

"Did Vlad send you?"

"No, Clockwork." The man came over to Danny and did the same thing. Danny went ghost as soon as he could. "Well, Clockwork asked my 'boss' to send me, but same thing. I'm Yusuke Urameshi."

"Danny Fenton." They shook hands.

Valerie was already on her hoverboard. "Introductions later. Come on! Before he comes back!"

"Right!" Danny took to the air.

Just in time to see him burst from the trees.

Danny went right, Valerie went left, just like they'd done so many times before. But this wasn't like before.

A ghost with five years more experience than him, with his and Vlad's powers combined. He'd practically killed himself defeating him the last time, and that was when he wasn't trying to kill Danny. Good thing he and Valerie had the same advantage this time.

"Danny, what's going on?" Sam's voice came over his earphone.

"Throw up the ghost shield around the park! This is that ghost I told you about, the one from the alternate future!"

"Roger. Be careful, Danny." Her voice was less professional and more soft on the last sentence, then businesslike again for, "Tucker says the shield will be up three, two, one," and it was up.

Danny looked around. He'd lost track of him. There. He was going hand to hand with Yusuke? A Yusuke that suddenly had longer hair? His ghost sense hadn't gone off.

A Yusuke that was holding his own. Danny and Valerie kept circling, they couldn't fire into the fight without chancing hitting Yusuke.

"Who is this guy?" Valerie's voice came over his headphones.

"Not a clue. But if Clockwork sent him, he's up for this. "Danny hoped. "Keep ready, though."

They had a fight on their hands.