From the back of the bock (user translated):
When you have been there, you always go back. It becomes a poison. The darkness. The light the weaves around the system crystals. Systems that curve towards you when you get too close. Black ice, grey ice, red ice.
Welcome to the Cyberzone.
This book contains the rules for travelling in Cyberkosmos, as well as to high-tech adventures for Mutant.