- ISBN: 9780679803713 | 0679803718
- Cover: Paperback
- Copyright: 8/18/1990
in 1895, most people still thing of the world in three dimensions. But there is a fourth dimension - time. Time travel seems impossible until one man invents a machine powered by a rare crystal that can take him wherever he wants to go. Even all the way to the year 802, 701! What will he find in the future? Amazing inventions? Strange people? Or danger? This chapter book adaptation of the classic is an exciting introduction to the world of science fiction.