Disclaimer: I don't own Danny Phantom or Left 4 dead. Both belong to their respective owners.

I wasn't able to save my freinds and family from the Nasty Burger explosion, but not because of the reason you may think. After I went to the future and defeated Dan, I made it back in time to save everyone.

Unfortunately for me, the zombie apocalpyse happened that day.

I was so relieved that I had managed to save my loved ones, that I didn't notice that Amity Park was a ghost town.

Pun totally intended.

I flew past a television store that had a few sets on display, and stopped when I saw that one said 'breaking news' is bold letters out of the cornor of my eye.

I decided that I needed to listen.

"This just in, there is a new virus spreading, called the 'Green Flu.' People are warned to stay in doors at all costs and to not be near anyone infected. If you know someone who is infected, call the authorities immediately."

This sounded serious.

I ran back to the Nasty Burger to make sure everyone was alright.

Then, I saw this lady with white hair and huge claws come barrling down the street, chasing a guy in a blue hoodie.

He ran into the resteraunt, and she followed.

Sam saw her chasing someone, and, even though she could tell there was seriously wrong with this girl, she tried to help the dude.

"Hey, you ugly witch!", she shouted. "Leave that guy alone!"

The lady whirled around, and started running towards Sam, and in the blink of an eye, had her claws through Sam's head.

Everyone ran out of the place screaming, and Tucker was pushed away by the crowd.

Then, mom and dad showed up, and tried to shoot the crazed woman with one of their ghost hunting tools, which only made her angrier.

She practically flew at them, yowling like a deranged cat, and tore through their jumpsuits with ease, making their guts spill out onto the floor.

They were dead before they even hit the ground.

Devastated and angry, I transformed and flew at the girl and punched her square in the jaw.

Which turned out to be a mistake, as I would later find out, as her tooth went through my glove and peirced my skin.

She howled in pain and anger, and swiped at me, hitting my shoulder, and making using that arm impossible.

I turned intangible, but that made her angrier, and she practically flew around the room, destroying it and mangling the bodies of the people in it even worse.

That was when Skulker flew in, and I turned invisible.

It's not like I was afraid to fight Skulker, but I was in a lot of pain, and didn't feel up to it.

Skulker saw the girl.

"Ah, what a unique creature. I will add your pelt to my collection, and I may hang your claws above my bed.", he said as he readied his weapon.

He fired at her, and she shrieked at him and hit him so hard he flew out the door, and she bounded after him.

I used the last of my stregnth to move some chairs and tables in front of the door, then I collapsed on the ground.

The last thing I saw was the mangled remains of Sam, and I thought "I wish I had just told her how I felt about her."

Then my vision went dark.

AN: I haven't watched The Ultimate Enemy in years, so let me know what you think about the first chapter. Also, I have never played Left 4 dead, I've only read fanfiction, so if the witch was out of character a little, I'm sorry. Any facts about Left 4 dead and the infected in it would be awesome.

Also, is the witch's eyes yellow or red?

Thanks