I've read both "knights of The Chosen" and " Last of the chosen", purchased on amazon kindle books store. I keep checking back to see if the third is yet available. I enjoyed them, and Whites writing style. It's a typical save the universe book with an earth man (architect in Nevada) snatched by chance of circumstance to the heart of the galactic kingdom through his act of bravery in saving the Princes of the empire.
There's plenty of intrique, good character development, nice world descriptions. White is pretty imaginative. I recommend both books, long but not boring at all.