Castiel caught the blade from The Doctors hand as it swung down.

"You don't have to do this." He said. Tears fell down The Doctors face more than ever before.

"Really, Castiel? You know me, you know the pain of being a Time Lord. I brought her along with me, I brought dear old Rose with me, and this is the consequence. She watched me die once, not too long ago. I suppose it's time we switched things around."

Castiel's hand remained on The Doctors.

"I am being very serious, Doctor. You don't have to do this. I am beginning to remember now. I remember this, and you didn't do it. Doctor, please, there is another way.

Suddenly, the once-was-Rose laughed.

"You know, he is right, Doctor. You don't have to do this. Rose is no more. The only thing that's left of her is this stupid vessel! Her soul was consumed by us, by the Behemoth. The Doctor looked at Castiel.

And the blade

went

down.