The end of the world started quietly enough for Tane Williams and Rebecca Richards, lying on their backs on a wooden platform on Lake Sunnyvale. Which wasn’t really a lake at all. Sunnyvale School was set in a small valley. A nice little suburban valley. A hundred years ago, it had been a nice little swamp where Pukeko and Black Stilts had competed for the best nesting positions, and croakless native frogs had snared insects with their flicking tongues. But now it was a nice little suburban valley, surrounded by nice little homes belonging to nice little homeowners who painted their fences and paid their taxes and never gave any thought to the fact that when it rained, all the water that ran through their properties also ran through the properties below, and the properties below those, and so on until it reached the lowest point of the valley floor. Which happened to be Sunnyvale School. As a consequence, Sunnyvale School had to have very good drainage. When it rained hard, as it often did in Auckland in the spring, an awful lot of that rain made its way down from the hillsides and ended up on the playing fields and courts of the small but cheerful school. And sometimes the water, sauntering its way down the slopes with a mind and a mischievous personality of its own, would playfully pick up odds and ends along the way with a view to blocking those very good drains that the council had put in many years ago after the first and second (and possibly the third) time the school had flooded. Sometimes it worked, and sometimes it didn’t. It depended on what the water happened to find in its path. Little sticks and paper food wrappings washed right through the big metal grills of the drains. Small branches, stones, and other large objects generally just ended up at the bottom of the homeowners’ nice little properties. But light twigs and pieces of plastic sailed merrily down the surface of the water and blocked the drains beautifully. That was what had happened this particular time, and the sports fields of Sunnyvale School were covered in at least four inches of water, high enough to lap at the doorsteps of the cheerful little classrooms across the way, but fortunately not quite high enough to get inside. Tane and Rebecca lay on their backs on the small wooden viewing platform in the center of the two main playing fields and looked up at the stars, for the rain had stopped many hours ago, and the night was clear and beautiful. Neither of them were pupils of Sunnyvale School; in fact, both of them were far too old to attend the school, and for another fact, both of them were in their second year at West Auckland High School. However, when they were younger, they had both gone to Sunnyvale School, which was why they knew that when it rained really hard during the day and stopped at night, it became a magical, wonderful place to be. The stars above shone down with a piercing intensity that penetrated the haze of lights from the suburban homes around the valley. The moon, too, was lurking about, turning the weathered wood of the small platform to silver. All around them, the lights from the sky above reflected in the inky blackness that was Lake Sunnyvale. The lake that sometimes appeared on the playing fields after a particularly heavy rainstorm. There were stars above and stars below, rippling slowly in the light breeze, and it was like being out in the center of the universe, floating through space on your back. Tane and Rebecca thought it was the coolest place to be. On Lake Sunnyvale. After the rain. Tane tossed a pebble into the air, and there was a satisfying plop a few seconds later as it landed. They both raised their heads to see the widening circles of ripples, shaking the foundations of the stars around them. Then, as if controlled by the same puppeteer, they put their heads back down together. Tane’s feet were pointing one way, and Rebecca’s were pointing the other, so the tops of their heads were just about touching. If they had been boyfriend and girlfriend, they might have lain down side by side, but they weren’t, so they didn’t. From an open window in a house somewhere on the surrounding slopes, an old Joni Mitchell folk song reached out plaintively across the water to them. Rebecca said again, “Time travel is impossible.” She said it more firmly this time, as if that were simply the end of the discussion, and the judge’s decision was final, and no correspondence would be entered into. Now, ordinarily Tane would have given up at that point, because Rebecca was almost certainly right. After all, it was Rebecca, and not Tane, who had aced her Level One Physics exams the previous year, the top student in the entire country, at the age of just thirteen! Which had been no real surprise to Tane, who had been in the same classes as his friend as she had confounded science teacher after science teacher and math teacher after math teacher, by somehow, instinctively, knowing as much about the subject they were teaching as they did. Some teachers enjoyed having Rebecca in their class because she was very, very clever, if a little rebellious and uncontrollable at times. But other teachers found it stressful to have a girl among their students who took great delight in correcting them whenever they made mistakes. So if Rebecca said that time travel was impossible, then time travel was impossible. But there was something about the stars that night. Something about their slow drift through the heavens above and below them, something about the beautifully random and randomly beautiful patterns they made. Or then again, it might just have been that Tane liked to argue, and he especially liked to argue with Rebecca.