Morgyn's Master (finished)
The Doctor went tearing through the town, looking. There was a niggling voice in the back of his mind that said, "There's a reason you went together to track him down earlier. The Master, your Master, would tell you to stop. To think."
He wasn't listening. Now that he'd seen this other future Doctor, who seemed so lost. He wanted to see. He wanted to know. What could have been.
And, yes, he hoped he could talk some sense into the other Master. But he'd take him down, if he had to.