There's a knock on the door downstairs, as the doctor arrives.

"Spike, make sure he doesn't come in here yet," Clark says. "And while you're down there, get the liquid sunlight. It's a glowing bottle in the cabinet above the stove... you'll know it when you see it." He wants to be prepared, if she takes too much of his blood tonight. He has a strong feeling it's going to come to that, soon.