An interesting idea, but it could've and should've been shorter. And it's already short as is.
A good book other than the ending is rushed and open-ended, like other works by Niven.
An excellent Larry Niven book that I just could not stop reading! If you a sci-fi fan or enjoyed Ringworld then this book is for you.
Phissthpokt the Pak had been traveling for most of his 32,000 years-his mission, to save, develop, and protect the group of Pak breeders sent out into space some 2 1/2 million years before...
Brennan was a Beltor, the product of a fiercely independent somewhat anarchic society living in , on, and around an outer asteroid belt. The Beltors were rebels . one and all, and Brennan was a smuggler. The Belt worlds had been tracking the Pak ship for days--Brennan figured to meet that shop first.. He was never seen again-at least not by those alive at the time.