(A/N: This story will evolve based on your suggestions. I love feedback, positive or negative. Enjoy!)
Being a servant of time was tiring. Being ordered about by the observers, watching as everything you knew was going to happen happen, and simply waiting was wearing out the ghost known as Clockwork. The master of time took to staring at the thermos that encapsulated Dan Phantom. A paradox, a being that should not exist. The events to create him never happened, but yet, he was still here.
The observers, time and time again, urged him to destroy the being. But Clockwork had not. He would not. Dan was an anomaly, as stated before. He was the one thing that Clockwork could not predict a future for, and that made him very, very curious.
The thermos was silent these days. It started off rattling, with dents, as the monster inside tried to escape. Clockwork simply fixed it every time. Dan spoke a lot, pledging he would escape, vowing to return, promising to defeat his younger self. Slowly, but surely, it subsided into silence. Perhaps the older ghost had gone into hibernation, biding his time. Maybe he had become good, this Clockwork doubted. The impulse to open it was strong, to release the creature, to see what had become of it, if he was even inside at all.
The time ghost moved his gaze away from the figurative Pandora's box, and decided. He would commission for a containment unit to be created, similar to the one that held Vortex, but this one would be much stronger. Yes, and there would be a slot for the thermos to open into, to release the prisoner inside.
And it really didn't take much time at all. Then again, Clockwork was the master of time, so he perhaps he had a hand in how quickly it went.