This particular Reunion is a 2001 Pip and Flinx novel from Alan Dean Foster. Pretty good telling of part of the coming of age period of life of this complex, much travelled character. Flinx–Philip Lynx–is the product of far future (illegal) genetic engineering and he still doesn’t know all that much about himself or his capabilities; this book has him running hard and fast after some of this information. An enjoyable read, Foster has been writing tasty SF candy for over 30 years now.
Next two books in this series, already written and turned into the publisher, and due out in 2003, are titled Star Brake and Sliding Scales; these will be the 21st and 22nd books in Foster’s Commonwealth series.