Baen, New York, 1990, 1^st pr.  ISBN 0-671-69868-0.  MMPB, 347 pages.  Light edge wear, crease at upper front wrap; reading creases; binding sound.  Prior owner’s and book store stamps on first page; remainder of interior clean and unmarked with tanning pages.  ‘… we met the Tampies.  In the arts mechanical they were less skilled than we, but in the biological sciences they were incomparably more advanced.  Either as a result of or because of that advancement, the Tampies held all life to be part of a single pattern, and themselves to be its guardian:  to harm the slightest part of it was to harm the whole, and that they would prevent at all costs.  Humanity being what it is, it was inevitable that such a species ethic would bring its holder into conflict with Man.  Unfortunately for us, the Tampies’ living spaceships were much better than our metal ones:  the Tampies had Warhorses….’ (from rear wrap)