The Master laughed at his reactions to the onslaught. "One simple thing he asked you to do and you couldn't even accomplish that. I suppose it was a mercy that your father died before he could see what a failure you were." he goaded, mocking Jack's pain openly.

This was magnificent. This had been what he was after during their time on the Valiant but he never quite had the right button. He got close, oh so close, when he'd placed the Doctor's torture on Jack's shoulders but he'd never gotten outright cowering.

"I do believe it's too late for pleasant conversation, Jack. Far too late."