amberfocus | Trying to Find a Fic (Reply)

I'm trying to remember the name of a fic I read last year when I was laid up after my surgery. It was on both LJ and Teaspoon. Nine had regenerated into Ten, but his essence didn't let go because he couldn't stand losing Rose when they'd had so little time together. He hid in Ten's mind and got stronger and stronger and when Ten didn't find a way to get Rose back when she was trapped in Pete's world, Nine managed to take over and force Ten to go and get Rose. They got her back and Nine kept Ten chained up and tortured in his head until Ten finally found a way to break free again. Rose had sort of figured things out by that point. There was a sequel written as well, at least on LJ. I think it had the word madness in the title. And the fic used an icon that was half Nine's face and half Ten's. Anyone know what I'm talking about? It's driving me crazy.