He tried to grip onto the very brief burst of euphoria he felt, but it was overwhelmed by the anguish. What was the point? He'd fail, he always failed the ones he cared about. Donna, Martha, Rose. They all were hurt because of him. He watched them stop becoming the brilliant people they were becoming and watched them turn into...what they became. It didn't matter what happened to the Doctor. They could do whatever they wanted to him and maybe the universe would be better.

But Jack...

No. No, he couldn't let them do this to Jack. Jack had suffered enough, and mostly because of the Doctor's gross negligence. He wouldn't let them hurt him again. This new emotion pumped through the Doctor's veins and he turned to the buttons.

"They have that symbol on them," he said, his voice now confident. "I don't think it's a language, I think it's a code. If our theories are right about this place, it's violating so many of the codes of the Shadow Proclamation that just a breath of what goes on would send every person here into permanent solitary confinement on Rabio Major."

He couldn't figure out the symbols, he'd need time and more samples of the code. He shook his head. "Logically, this would be the lights, heating, water, air, medical. This would be the doors."

He pressed the button. The lights went out.