Eye of Cat by Roger Zelazny
The novel “Eye of Cat” by Roger Zelazny was published for the first time in 1982.
Billy Blackhorse Singer is a very special hunter as he hunted alien prey for many years. He has now retired from that activity, but the world government requires his services for a slightly different mission for which his talents can still be very useful: to protect an alien diplomat from a member of his own species.
The mission requires some very special skills and Billy Blackhorse Singer decides to resort to the help of a unique alien, a shapeshifter who’s the last individual of his kind and has various mental and physical abilities. Known as the Cat, the alien agrees to help Billy but in return asks him for the chance to hunt him after the mission ends.