Author's Note: Well, here I go. Afull length fan fiction. Yes, I know that myOC villain is about as evil as the box ghost and has a flatter personality than a Mary-Sue, but I tried.

Disclaimer: Butch Hartman created Danny Phantom. Danny Phantom and all titles, logos, etc. are property of Viacom Inc.

The night lay calmly over Amity Park. Many silvery dots, the stars, speckled the navy blue night sky. The city was softly lit by a mixture of amber street lights, tiny slivers of light from some windows, pale moon light, and fluorescent neon signs that advertised many things from popular night clubs to the newest brand of cola scented oven cleaner.

With a FWAM!, Danny Phantom was knocked into the air by the tail of the enormous ghost ferret.

The ferret's fur was a luminous white that gave off a hint of a green aura; its brightness made Danny squint and scrunch his eyes as he attempted to fight it. The ferret had beady red eyes that glinted with malice as it watched Danny dodge its onslaught. It swiftly moved; the long body of the ferret waved like a snake's slithers. Its footsteps were light, like it was walking two inches above the ground.

Danny shook off the daze imposed by the flick of the tail and focused as best he could upon the ferret. Danny made a noise that seemed to be a cross between a groan and a sigh.

The ferret lazily swatted Danny with a vast paw, getting bored of the black-and-white squeaky toy that floated in the air. It opened its furry mouth and tried to clamp down on the squeaky toy, hoping to create a massive squeak.

Danny slipped away from the bite of the ferret, contorting his body away from the large teeth. He flew in circles around the ferret's head a few times and landed behind it, next to his two friends.

The ferret staggered around drunkenly; it dizzily tried to keep its gaze on Danny. The ferret's feet stomped heavily down on the ground as it tried to regain its bearings. Danny saw his chance

"Thermos, please," Danny demanded, holding his hand out in front of Sam. Sam handed the white and green cylindrical device over to Danny.

"Say goodnight, weird weasel," Danny sternly said as a pinpoint of sky blue light formed inside the Fenton Thermos and steadily expanded into an orb of white light.

"Uh, Danny. I think it's a ferret," Sam interrupted.

"A male ferret," Tucker added.

"Ferret fiend," Danny corrected.

The Fenton thermos chose that moment to erupt in a beam of bluish light that swallowed the ferret quickly into the main body of the thermos. Once the device had finished engulfing the white blur that was the ferret, Danny slipped the cup snugly over the swallowing hole.

"How many ghosts have I fought tonight?" Danny asked rhetorically.

"Well, let's see..." Tucker pulled out his PDA and slipped the special pen away from the side. He prodded the screen a few times with the point, muttering in the process. "Twenty three," Tucker answered. He turned the screen so Danny and Sam could see the list of ghosts he had made.

"And they're all in the thermos, now," Danny said, a slight amount of pride mixing into his voice.

"You keep a list of the ghosts Danny has fought?" Sam raised an eyebrow questioningly.

"Sure, it's a great way to keep track of his improvements," Tucker replied.

A wisp of blue mist floated out of Danny's mouth as a slow chill blanketed the three friends. An odd breath, that was cold yet damp, gently surrounded Danny's neck.

Danny turned around to see a ghost dog, with the same colourings as the ferret, standing behind them. The ghost dog was twice the size of the ferret. Its features gave it the youth of a puppy but it snarled and bared its teeth with the ferocity of an older dog.

"Tucker, you might want to add another ghost dog to your list." Danny floated up, so he was eye level with the dog. "I just wish I knew where all these ghost animals are coming from."
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Meanwhile, in the shadier parts of Amity Park (named because of the clouds that constantly hung over it), outside of a derelict house, vague flashes of light escaped through the wooden planks of one of the many boarded up windows.

Inside, a shadowy figure was busy. Long boards of flashing, beeping and humming consoles lined the walls of the room, in which the shadowy figure worked solitarily. Caged animals of many species were scattered around the room's cramped interior. Three large glass panels created a cube-shaped enclosed area in one corner. Inside the glass was a small ghost cat. It had similar red eyes, white fur and green aura to the dog and the ferret.

The figure silently moved from console to console, pressing random buttons until he came to rest in front of one. The figure carefully lifted what seemed to be its hair away from its head, but seemed to be more like a wisp of shadow, and plucked the 'hair' from its head.

The figure turned back to the console and picked up a hollow glass cylinder which had hemispherical ends. The figure split it at the middle with a sucking pop, slipped the 'hair' inside the tube and closed the tube again. The figure then slipped the tube into an accurately sized hole in the console and pressed a sequence of buttons.

The cat in the contained area was instantly surrounded by twin swirls of shadow that absorbed it into their pitch black depths. The shadows cleared, unveiling a cat with a similar appearance to the shadowy figure. The newly shadowy cat arched its back and quietly hissed.

The figure removed the tube of 'hair' and pressed another sequence of buttons. The shadows broke away from the cat. All of a sudden, the cat started to grow. A snarling, hissing shadow, that was almost a reflection of the large cat, was cast on the wall behind it.

The figure gave a menacing smile and uttered one word in a deep, raspy whisper. "Marvellous."