"So," said Slughorn, suddenly brisk, "how are you to win this fabulous prize? Well, by turning to page ten of Advanced Potion Making. We have a little over an hour left to us, which should be time for you to make a decent attempt at the Draught of Living Death. I know it is more complex than anything you have attempted before, and I do not expect a perfect potion from anybody. The person who does best, however, will win little Felix here. Off you go!"