A/N: Here I am! I have decided to write a fanfiction that I randomly thought of. As far as continuity goes, this takes place three years after the events of "Ultimate Enemy." That means that this also takes place prior to the events of Gravity Falls, before the twins went there for the summer. Now that that's over, please, sit back, relax, and enjoy my Fanfic. I now present: Dan's Deal!

Dan Phantom, the evil version of the half-ghost child, Danny Phantom, was having an uncomfortable life stuck in Clockwork's Tower. He was cramped inside the Fenton Thermos. Clockwork was a cruel keeper. He never let Dan enter the Ghost World in the past or the present. He was having another sour day when he found a piece of paper floating around in his thermos. It read:

"Triangulum, entangulum. Meteforis domius ventium. Meteforis venetisarium!" Dan said these words aloud, and something happened. There was a triangular blue flame. He was greeted by a yellow triangle who was wearing a top hat and bow tie. He grew a cane and the sky turned black and white.

"WELL, IF IT ISN'T LITTLE OLD DANNY PLASMIUS!" He said, "THE NAME'S BILL, AND I TAKE IT YOU HAVE A PROBLEM."

"I do have a problem," replied Dan, "I've been trying to escape this thing for three years. I really miss causing havoc."

"WELL, THAT'S FINE. WATCH WHAT I CAN DO!" He said as the walls of the thermos disappeared, and Dan was free.

"What was all that about?" Dan asked in a sadistic tone. Bill knew that Dan was the most sadistic being in the universe.

"I HELPED YOU ESCAPE. NOW YOU CAN HELP ME WITH A LITTLE SOMETHING THAT I'VE BEEN WORKING ON, WE'LL WORK OUT THE DETAILS LATER. DO WE HAVE A DEAL?" Bill stuck out a blue, flaming hand.

"Alright," Dan said in the same sadistic tone, "Deal."

A/N: Well, how was that? I believe that this is the time to leave a review if you have the chance. If you enjoyed this one, then don't forget to read my other Fanfics. Don't forget, Bill Cipher is watching you!