Outcast in space. Michael Trehearne had always been an outcast among his people on Earth. He knew he was different. He did not know how or why. Then one day, on the wind-swept coast of Brittany, a bewitchingly beautiful girl appeared and told him he had the look of the Vardda - those elite star travelers who alone could withstand the rigors of intergalactic flight.
Michael had to join them, had to find his place in the universe at last. But it would not be easy. For even when they allowed him to risk his life aboard their ship, to seal his fate upon their planet, even then, they viewed him as an outcast, a dangerous changeling who suddenly threatened them. He was a man who sooner or later would have to be destroyed!
Originally published in the March 1951 edition of Startling Stories pulp magazine, then subsequently published in hardcover by Gnome Press in 1952, this was later revised and cut by about 20,000 words and retitled The Galactic Breed to be published as half of an Ace Double. Strangely, that's the title of the Kindle edition linked to by Audible if you get the whispersync deal. Also, the author of that Kindle edition is only listed as "Leigh." Annoying. Oh, and this book was also later retitled The Starmen of Llyrdis. Whew.
Anyway, I wouldn't recommend this book even though I love Leigh Brackett, this isn't one of her best. The narrator performed very well, but the story was rather dull. If you're looking for a Leigh Brackett audiobook you should look elsewhere.