"They aren't tiny. They're fairly rare. But they've been hunted to extinction -- by vampires," he adds. "Because they are, well," he huffs out a laugh. Very rarely is Godric embarrassed. But he is embarrassed by this.

"Their blood is the equivalent of a drug, I suppose. They, dammit, Annie. They taste very good. And the legend is that they make it possible for us to walk in sunlight."