Glow - Amy Kathleen Ryan, Macmillan Children's Books

16 years ago, Waverly and Kieran were the first children born in space. Now a perfect couple, they are the pride and joy of the whole spaceship.They represent the future.The ship is their entire world.They have never seen a stranger before.Old Earth is crumbling, and the crew is hoping to reach (and colonise) New Earth within fifty years. Along with their allies on the second spaceship - who set off a year before them and whom they have never met.One day, Kieran proposes to Waverly. That same morning, the 'allies' attack - and Kieran and Waverly are separated in the cruellest way possible. Will they ever see each other again?