When you have written as many good books as Niven, you have bits left over from them. Thus we are presented with remnants from Magic Goes Away,in what looks like the rejected first plot of Destiny's road. We then are subjected to a bit of "who am I really" that didn't make into "World out of time". The 'political' structure is "The State", just not done as well. The principal character is Louis Wu's idiot son. Nessus is back as a wizard, but in a dull and pointless way. However, there is some innovation. Mr. Niven has managed to produce an implausible Fantasy novel. I think this is a first, given the freedom of ther genre, it certainly isn't easy. The level of mundane technology is far advanced from the period it is allegedly set, and the characters seem to act as if they were first generation holodeck simulations before they got good at it.