"You certainly took your sweet time getting here," the Master observed acidly, "For somebody so concerned." He craned his neck, trying to watch the Doctor's movements when the other Time Lord went behind him.

"If you're still looking for Doctor Song, she left. With the key." He wouldn't have thought that needed to be said, but the Doctor haphazardly pulling at the handcuffs, as if they'd just pop free, seemed to confirm that it did.