His immediate reaction was that it would be worth becoming a prefect just to be able to use this bathroom. It was softly lit by a splendid candle-filled chandelier, and everything was made of white marble, including what looked like an empty, rectangular swimming pool sunk into the middle of the floor. About a hundred golden taps stood all around the pool’s edges, each with a differently colored jewel set into its handle. There was also a diving board. Long white linen curtains hung at the windows; a large pile of fluffy white towels sat in a corner, and there was a single golden-framed painting on the wall. It featured a blonde mermaid who was fast asleep on a rock, her long hair over her face. It fluttered every time she snored.

Harry moved forward, looking around, his footsteps echoing off the walls. Magnificent though the bathroom was—and quite keen though he was to try out a few of those taps—now he was here he couldn’t quite suppress the feeling that Cedric might have been having him on. How on earth was this supposed to help solve the mystery of the egg? Nevertheless, he put one of the fluffy towels, the cloak, the map, and the egg at the side of the swimming-pool-sized bath, then knelt down and turned on a few of the taps.

He could tell at once that they carried different sorts of bubble bath mixed with the water, though it wasn’t bubble bath as Harry had ever experienced it. One tap gushed pink and blue bubbles the size of footballs; another poured ice-white foam so thick that Harry thought it would have supported his weight if he’d cared to test it; a third sent heavily perfumed purple clouds hovering over the surface of the water. Harry amused himself for a while turning the taps on and off, particularly enjoying the effect of one whose jet bounced off the surface of the water in large arcs. Then, when the deep pool was full of hot water, foam, and bubbles, which took a very short time considering its size, Harry turned off all the taps, pulled off his pajamas, slippers, and dressing gown, and slid into the water.

It was so deep that his feet barely touched the bottom, and he actually did a couple of lengths before swimming back to the side and treading water, staring at the egg. Highly enjoyable though it was to swim in hot and foamy water with clouds of different-colored steam wafting all around him, no stroke of brilliance came to him, no sudden burst of understanding.