March 30th, 2010, 10:13 AM
I read this paperback in the early to mid 80's. A man wakes up from suspended animation to find himself with no memory on a desserted world. There were two women in sa also that woke up shortly after with no memories either. They explore their world and discover windows/portals that lead to other worlds. I seem to remember seven portals. They explore these and some are dangerous(monsters?) The final portal is the window to earth. They were sent through this experience to bring back fresh, unbiased ideas on how to deal with the problems on earth.