When the Master had entered the TARDIS he'd expected the Doctor to get angry with him, that was a given. But what he saw was the man he loved even weaker than before. For a brief moment, the Master was at a loss for words "… I had to kill them… they were telepathic, that was the only way to break the thread to you. I [i]had[/i] to do it" his voice firm as he stared to the Doctor, watching as the man fell back.

Hazel green eyes widened "Theta!" he closed the gap between them as rapidly as possible. Hearing his words, the light that had been forming within Koschei's eyes was dimming "N-No.. No don't say!" his voice angrily but not because he was mad at the Doctor. Because he wasn't. He was mad at himself for not trying harder to break that link the enemies held to the Doctor's mind. "Theta… stay with me.. stay awake" he pulled the Doctor into his arms "you're going to be alright, you hear me?"

His fingers shakily brushed through the Doctor's hair as he tried his best to keep the Doctor calm. The Master was on his new stream of regenerations. The first new batch out of thirteen, so he had plenty to spare, and you bet he'd break one up for the healing energy to pass onto his Dear Doctor. Closing his eyes the Time Lord held his dying Doctor in his arms "Stay with me.. Theta" his voice a semi-painful whisper; it would seem that forcing the regeneration energy was a tad painful on the second cycle of regenerations but it was nothing compared to the pain he'd go through if he truly lost his Doctor.
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As his eyes opened, they took on a somewhat familiar, yet slightly different tinge to them as he stared down into the Doctor's eyes "I'm not letting you leave me, Theta. Now it's my turn to beg you to fight and stay with me. I'm not letting you die. I will help you" leaning in he placed his lips to the Doctors as he pulled the man's form closer against his own, passing on the healing energy from one of his regenerations.