The Doctor has lived a long life, and he's seen a few things.
He walked away from the Last Great Time War. He marked the passing of the timelords. He saw the birth of the universe, and he watched as time ran out, moment by moment, until nothing remained. No time, no space, just him. He has watched universes freeze and creations burn, he has seen things you wouldn't believe; he has lost things you will never understand. And he knows things: secrets that must never be told, knowledge that must never be spoken, knowledge that would make parasite gods blaze.
But in 909 years of time and space, he has NEVER seen ANYTHING quite like where he just found himself.
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Featured on: 7-12-14, 8-22-14, 9-8-14, 9-20-14