How about a sample of some of the reviews of the first three books in the series.
“A definite 5-star read (from one who mainly reads WWII, chemistry, and physics). Going to order it for a friend and have it sent directly to her Kindle.”
“What I really like, and other reviewers have mentioned this, is the great characters and their development throughout the story. I found myself rooting for several of them and hoping for a romance between them.”
“It is amazing how in such a short time I vested in the characters.”
“I’m a sucker for free books but they seldom keep my interest going long enough to warrant purchasing more in the series. THIS IS THE EXCEPTION!”
“I would definitely recommend this book. It does what all good science fiction should do–it challenges you to think deeply and critically. I can’t wait to find out what happens next and am eagerly looking forward to the next book in the series!”