He hesitates at that, because he wants to say something stronger but equally he doesn't -- Lancelot doesn't drink a lot as a rule and he doesn't want to worry Faolan.

"Water should be fine," he says finally, and flicks a wan sort of smile. "Just -- give me a moment and I'll try and describe it to you, although I'm not so sure how much it will help. It's all a little imprecise."