The Doctor exhaled, shakily, ending in a sob. He knew how likely it was that this would be it and that wasn't fair. None of this was. He hugged the Master tightly, looking into his eyes.

"I don't want to know life without you." Dramatic, overly dramatic maybe even, but it was definitely a moment to say something like this. Because a moment later and he felt the Master's presence shifting, perhaps fading. He was in his arms, regenerating, if he still could.