I loved reading Joe Haldeman's seminal science fiction novel Forever War, and I enjoyed his award-winning Forever Peace. I picked up Forever Free with the expectation that this sequel to Forever War would relive the issues of the original novel. I had hoped it would follow up on Haldeman's observations about science, war, sociology, and psychology. Unfortunately, unlike FW and FP, this novel ignored those issues and presented a spiritual side (or at least as close as Haldeman is willing to offer) that the others didn't touch on.
Forever Free picks up several years after William and Marygay settle down on the ice planet Middle Finger. Their self-imposed ghetto separates them from the group minds of Man and Tauran, but their lives are constantly influenced by them as well. They don't like seeing their children grow up in this environment, and it has become clear that they are at a critical moment in history. The veterans old enough to remember the Forever War are getting too old to fight. If they are going to stand up to Man, it has to be soon.
The first half of the book is interesting, even if it seems padded at times. I had enjoyed the descriptions of life on Middle Finger with Man. I liked the conflict between Mandella and his son. I even liked the Man sheriff and the Tauran ambassador, but Haldeman appears to use them as stock figures - when he remembered to mention them at all.
There comes a moment when the book ceases to be about revolution and evolution and becomes something of a whodunit. I disliked this part of the book. Haldeman may not be the best SF writer out there, but FW and FP were based on science. Some of it was hand-waved, but there were always scientific principles behind everything. In Forever Free, Haldeman gives us a mystery in which there should have been a good, scientific answer. Instead, he gives us an answer that is more fantasy than science fiction.
I think Forever Free could have worked better as a shorter piece. If the publisher had removed the blank pages between chapters, I think they would have been hard-pressed to make it a 200-page novel. With some editing (and a better ending), it would have made a nice 100-150 page novella. This was a big disappointment for me.