The titles in this series are mainly new editions of titles in the Longman Simplified English Series. They are suitable for students at upper intermediate level, including those preparing for the Cambridge First Certificate. There is exercise material at the back of each book.
As they through a park in the distant future, Harl and Ellen talk about their work and their lives. But they will never have a life together because their work as scientist is more important to them than their love. Harl plans to leave Earth, on a long and dangerous journey through space. Ellen plans to stay on Earth, to change the way human mind works. When Harl returns to Earth, Ellen will be long dead ... and the world will be a very different place.