However, after reading Twin Bred by Karen A Wyle I felt compelled to read the second in the series.
Reach takes over from where Twin Bred left off and although the two need not be read in sequence, the world(s) create by Karen are far too intricate to let go.
Following a long running and intrigue-filled experiment, the Twin Bred, outcast offspring of the Human/Tofar breeding program, finally leave the planet Tofarn. Their destination is another world where they hope to be happy, or at least discover some peace. Awaiting them on this new planet are yet another race of people. Will they be friendly? Amid the ensuing discoveries none of the problems on the world they left behind are forgotten, and all endow a richness to the plot. The pace accelerates but not so fast as to leave the reader bewildered and, like the first novel, full of intrigue and alternate avenues of thought.
This is in a different league from most SF adventures. Intelligently written, the pace never slackens. To say much more would be to spoil it for any would-be readers. All I can say is delve in yourselves. You won't be sorry.