Warning! Spoilers for "Let's Kill Hitler"!
"Doctor… what the hell is this?"
The Doctor froze, eyes flickering to the screen. It looked like Koschei had looked up the history in the databanks and…
Oh no.
"It's nothing. Nothing at all." He said quickly, clearly lying through his teeth. Koschei snarled - literally snarled back at him.
"Tell me what the hell this is, now!"
"Koschei, honestly, it's absolutely-"
"DON'T YOU LIE TO ME YOU COWARD!" Koschei shouted, voice shaking with rage. "Now tell me why the hell you have your time of death right after I cam aboard!" He blinked back tears, lip trembling slightly. "You're you, aren't you? Not just a ganger? You're you… right Doctor?"
For a moment - just a moment - there was silence. You could actually hear the TARDIS's sight stasis thrumming it was so quiet.
"Kosch… I'm here," the Doctor said at last, taking a half step toward the blond. "I'm me. I think that's a future version of me that dies." He smiled sadly. "You have a bit longer with me yet."
The younger Time Lord nodded, just slightly. There was only one question running through his mind though.
Why aren't I there when the Doctor dies?