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The Long Silence: A Hard Science Fiction First Contact Thriller
A lost probe returns from interstellar darkness carrying an offering humanity cannot safely refuse, or fully understand.
Fifteen years ago, the Prometheus mission vanished beyond the edge of the solar system. Its signal died. Its crew was gone. Its story was over.
Then Prometheus comes back.
Now retired scientist Dr. Nell Hadfield, the woman who designed the probe’s autonomous mind, is pulled into a global crisis when the impossible spacecraft reappears in Earth orbit, broadcasting a signal unlike anything humanity has ever seen. What begins as a scientific mystery becomes something far more the probe is not just transmitting data. It is carrying the Method, a transformational blueprint that could remake human technology, human travel, and perhaps humanity itself.
As governments fracture, scientists race to decode the signal, and the world turns the discovery into politics, ideology, and fear, Nell must confront the one question no calculation can
If the stars can be reached, what are we willing to become to reach them?
The Long Silence is a cerebral, high-stakes hard science fiction thriller about first contact, relativistic space travel, autonomous intelligence, and the cost of crossing the threshold into a larger universe.
Perfect for readers of intelligent, idea-driven sci-fi in the tradition of Adrian Tchaikovsky, Alastair Reynolds, and Daniel Suarez.
Fifteen years ago, the Prometheus mission vanished beyond the edge of the solar system. Its signal died. Its crew was gone. Its story was over.
Then Prometheus comes back.
Now retired scientist Dr. Nell Hadfield, the woman who designed the probe’s autonomous mind, is pulled into a global crisis when the impossible spacecraft reappears in Earth orbit, broadcasting a signal unlike anything humanity has ever seen. What begins as a scientific mystery becomes something far more the probe is not just transmitting data. It is carrying the Method, a transformational blueprint that could remake human technology, human travel, and perhaps humanity itself.
As governments fracture, scientists race to decode the signal, and the world turns the discovery into politics, ideology, and fear, Nell must confront the one question no calculation can
If the stars can be reached, what are we willing to become to reach them?
The Long Silence is a cerebral, high-stakes hard science fiction thriller about first contact, relativistic space travel, autonomous intelligence, and the cost of crossing the threshold into a larger universe.
Perfect for readers of intelligent, idea-driven sci-fi in the tradition of Adrian Tchaikovsky, Alastair Reynolds, and Daniel Suarez.
294 pages, Kindle Edition
Published June 9, 2026
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Displaying 1 - 3 of 3 reviews
July 6, 2026
Over the past few weeks I have read all three books in Emily Carter’s trilogy, The Threshold Protocol. It is hard to believe that these are her first books and, even more amazing is that fact that they were all published this year. As an avid reader of hard science science fiction I can say that she has already established herself on my must read list.
The Threshold Protocol is a series of books all related to first contact. However, different from many other books in this genre, the contact is with alien objects rather than living aliens. I totally agree with her premise that our first contact with other lifeforms in the universe is far more likely to be with what they left behind rather than the living creatures themselves. Will any luck, the field of Xenoarchaeology will feature prominently in our children’s and grandchildren’s futures.
The Long Silence is definitely my favorite book in this series. I am not sure if the books were written in the order I read them but I feel the writing improves with each book. My earlier criticism that she did not develop the charters enough has been left behind as the characters are well developed in this book and serve as a focal point for the story. As the about the author says, “Emily Carter writes hard science fiction about principled people facing impossible choices at the edge of human knowledge.”
A favorite part of first contact author Peter Cawdron novels is the afterward where he explains the science in his hard science novels. I was delighted to find that Carter does the same thing. In The Author’s Note in The Long Science she breaks down both the current science and the speculative science the book is based upon. Like with Cawdron, I enjoy these afterwards nearly as much as the novels themselves.
A last comment; in the end this book asks a basic question. It is one that can be used to evaluate machines, humans, and humanity. I cannot say more here without ruining the book for you but for me, having just celebrated my Semisesquicentennial birthday, this question was particularly pertinent. Hopefully, after reading Carter’s latest novel, you will be asking yourself the same question throughout your life.
The Threshold Protocol is a series of books all related to first contact. However, different from many other books in this genre, the contact is with alien objects rather than living aliens. I totally agree with her premise that our first contact with other lifeforms in the universe is far more likely to be with what they left behind rather than the living creatures themselves. Will any luck, the field of Xenoarchaeology will feature prominently in our children’s and grandchildren’s futures.
The Long Silence is definitely my favorite book in this series. I am not sure if the books were written in the order I read them but I feel the writing improves with each book. My earlier criticism that she did not develop the charters enough has been left behind as the characters are well developed in this book and serve as a focal point for the story. As the about the author says, “Emily Carter writes hard science fiction about principled people facing impossible choices at the edge of human knowledge.”
A favorite part of first contact author Peter Cawdron novels is the afterward where he explains the science in his hard science novels. I was delighted to find that Carter does the same thing. In The Author’s Note in The Long Science she breaks down both the current science and the speculative science the book is based upon. Like with Cawdron, I enjoy these afterwards nearly as much as the novels themselves.
A last comment; in the end this book asks a basic question. It is one that can be used to evaluate machines, humans, and humanity. I cannot say more here without ruining the book for you but for me, having just celebrated my Semisesquicentennial birthday, this question was particularly pertinent. Hopefully, after reading Carter’s latest novel, you will be asking yourself the same question throughout your life.
September 11, 2026
Entertaining
An automated space probe returns years after it was lost. It's changed, and it carries a message. Instructions for better and different technologies, which might change the world. Who decides if they should be used? On what criteria?
Very skilled author, changed a bland story into a very entertaining one.
An automated space probe returns years after it was lost. It's changed, and it carries a message. Instructions for better and different technologies, which might change the world. Who decides if they should be used? On what criteria?
Very skilled author, changed a bland story into a very entertaining one.
September 16, 2026
I wish it could be higher
Some very interesting ideas but a lot (and I mean a lot) of repetition. Reminded me of working with an ai that constantly rephrases what is already known. I had to skip through several times. Very dissatisfying end.
Some very interesting ideas but a lot (and I mean a lot) of repetition. Reminded me of working with an ai that constantly rephrases what is already known. I had to skip through several times. Very dissatisfying end.
Displaying 1 - 3 of 3 reviews