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Andrew Mayne
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The Final Equinox: A Theo Cray and Jessica Blackwood Thriller Kindle Edition

by Andrew Mayne (Author) Format: Kindle Edition
4.3 4.3 out of 5 stars 8,049 ratings
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Dr. Theo Cray and FBI agent Jessica Blackwood follow a deadly celestial trail in a thrilling novel by the Amazon Charts and Wall Street Journal bestselling author of Mastermind.

A signal is detected at the outer edge of the solar system. Computational biologist Dr. Theo Cray and magician-turned-FBI-agent Jessica Blackwood are looking—and listening—a little closer.

The man at the center of this cosmic mystery is billionaire Thomas T. Theismann. He’s spent a lifetime—and a fortune—trying to find out if we’re alone in the universe. Highly skeptical, Theo joins the effort to find the source of the signal, and he quickly enlists Jessica to look into the suspicious death of another academic at the lab. As their investigations converge, they uncover curious connections to the otherworldly contact, including a 1970s science-fiction writer and the body of an astronaut found buried in an ancient tomb.

As they delve into Theismann’s history, Theo and Jessica’s fascination with the signal intensifies. How dangerous will the investigation get? That depends on how deep into the unknown Theo and Jessica are prepared to venture.

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  1. Book 2 of 2
    Theo Cray and Jessica Blackwood
  2. Print length
    336 pages
  3. Language
    English
  4. Publisher
    Thomas & Mercer
  5. Publication date
    September 13, 2022
  6. File size
    8.0 MB
  7. Page Flip
    Enabled
  8. Word Wise
    Enabled
  9. Enhanced typesetting
    Enabled
  10. See all details
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  1. When they’re alive, it’s easy to see the flaws. When they’re gone, you tend to notice only the hole in the Earth that they left.
    Highlighted by 193 Kindle readers
  2. Belief isn’t zero or one for me. I think in terms of probability. I’ll never have enough information to say something is absolutely one way or the other, but I can be persuaded that something is vastly more likely to be true than not.
    Highlighted by 129 Kindle readers
  3. I don’t get this generation any more than I understood my own. I don’t think they’re fame-seeking sociopaths; they’re simply so numb to reality that it’s hard for them to understand what’s wrong and what’s right.
    Highlighted by 110 Kindle readers
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Editorial Reviews

Review

“Science fiction fans will want to check this one out.” —Publishers Weekly

“A lively genre-hopping thriller written with panache.” —Kirkus Reviews

“This mix of science, thrills and intrigue calls to mind the work of James Rollins and Michael Crichton. The Final Equinox has it all and shows why Mayne is one of the brightest talents working in the thriller field today.” —Bookreporter

About the Author

Andrew Mayne is a Wall Street Journal bestselling novelist and creator. He starred in the Discovery Channel’s Shark Week special Andrew Mayne: Ghost Diver, where he swam alongside great white sharks using an underwater invisibility suit he designed. He was also the star of A&E’s Don’t Trust Andrew Mayne.

He’s been nominated for the Edgar Award for his book Black Fall and the Thriller Award for Name of the Devil and The Naturalist—an Amazon Charts bestseller that spent six weeks at the #1 spot for all books on Amazon.

In addition to writing, Andrew works for OpenAI on creative applications for artificial intelligence.

Product details

  • ASIN ‏ : ‎ B09C66M2DZ
  • Publisher ‏ : ‎ Thomas & Mercer (September 13, 2022)
  • Publication date ‏ : ‎ September 13, 2022
  • Language ‏ : ‎ English
  • File size ‏ : ‎ 8.0 MB
  • Text-to-Speech ‏ : ‎ Enabled
  • Screen Reader ‏ : ‎ Supported
  • Enhanced typesetting ‏ : ‎ Enabled
  • X-Ray ‏ : ‎ Enabled
  • Word Wise ‏ : ‎ Enabled
  • Print length ‏ : ‎ 336 pages
  • Customer Reviews:
    4.3 4.3 out of 5 stars 8,049 ratings

About the author

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Andrew Mayne

Andrew Mayne

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Andrew Mayne is a Wall Street Journal bestselling author whose books include The Naturalist, a Thriller Award finalist and Black Fall an Edgar Award finalist Black Fall. He’s the star of the Discovery Channel’s Shark Week special Andrew Mayne: Ghost Diver, where he swam alongside great white sharks using an underwater invisibility suit he designed and also was the star of A&E’s Don’t Trust Andrew Mayne. He currently serves as the Science Communicator for OpenAI, the creators of ChatGPT and GPT-4.

@AndrewMayne

AndrewMayne.com

Customer reviews

4.3 out of 5 stars
8,049 global ratings

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Customers say

Customers find the book engaging and entertaining from the first page. They enjoy the characters and their interactions. The writing style is described as excellent and unique. Readers appreciate the positive relationship between the main characters. Opinions differ on the scientific jargon and plot complexity, with some finding it depthful and interesting, while others feel it's too technical and light on storytelling.

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ReadabilityCharacter developmentWriting styleRelationshipScience jargonPlot complexityCredibilityPacing
116 customers mention "Readability"116 positive0 negative

Customers enjoy the book's readability. They find the story engaging and entertaining from the first page. The author keeps the story moving with alternating perspectives, and the plot seems plausible for today's world.

"...but it probably needs that element to convince the reader it's a credible story." Read more

"...The banter between Theo and Jessica is a lot of fun. Pretty ultimate use of pop culture at the climax." Read more

"...Clever book, though and a good read." Read more

"The plot overall was ok but thought the 1st book in the series was a better written story by far...." Read more

25 customers mention "Character development"25 positive0 negative

Customers enjoy the characters' development. They find Theo Gray fascinating and like how the two main characters interact. Readers also like the character of Agent Blackwood.

"I enjoy the Dr Cray character. He's intriguing while curious...." Read more

"...It made Theo Cray's character more believable. I really liked his and Jessica's interaction very much...." Read more

"I really enjoy the characters Theo Gray and Jessica Blackwood . I was very happy when the two of them decided to join sides...." Read more

"I want more Cray and Blackwood! Love these stories! Character development is great. Love their relationship...." Read more

21 customers mention "Writing style"15 positive6 negative

Customers enjoy the writing style. They find it engaging and unique. The narration is smooth between the two voices, making the book an easy read.

"...But dissolves into a who done it detective novel, no sci fi here. Good writing but disappointed...." Read more

"Second Andrew Mayne I’ve read. Enjoying his writing style and added humor. Just bought 4 more. Looking forward to it." Read more

"The technical speak was off the rails in this for no reason. My least favorite Theo novel- the others were all fantastic...." Read more

"...Still, the journey is worth the ride and the novel is a very easy read (compliment), as are all of Mayne's novels...." Read more

15 customers mention "Relationship"15 positive0 negative

Customers enjoy the relationship between Theo Cray and Jessica. They find the pairing positive, synergistic, and believable. The characters work well together and are described as a dream team.

"...They are a dream team, nonetheless. I hope there'll be more tales to come." Read more

"...Love these stories! Character development is great. Love their relationship. I have enjoyed all of Andrew Mayne novels!" Read more

"Another interesting collaboration between Cray and Blackwood. The plot seemed feasible for this day and age...." Read more

"Jessica and Theo become more believable as a couple and there's humor in their back and forth interaction...." Read more

57 customers mention "Science jargon"33 positive24 negative

Customers have mixed opinions about the science jargon in the book. Some find it interesting and thought-provoking, while others feel it's too scientific and long with explanations that don't make sense. The subject matter is interesting but some readers feel the plot jumps around too much.

"...The book is well-steeped in scientific reasoning with much less attention given to the motivations of the actors so that the whys are less than..." Read more

"...He's intriguing while curious. The book is a bit too scientific at times, but it probably needs that element to convince the reader it's a credible..." Read more

"...Part science mystery and part satire, I enjoyed the whole adventure." Read more

"...This concept has so much potential and I tore through the first half of the book...." Read more

38 customers mention "Plot complexity"20 positive18 negative

Customers have different views on the plot complexity. Some find it interesting with twists and turns, and thought-provoking. Others find the plot difficult, boring, and lacking cohesion. The first chapter isn't compelling, and the plot lacks cohesion.

"I enjoy the Dr Cray character. He's intriguing while curious...." Read more

"...The storyline was not tight & jumped again & again to new locations & new ideas with not all of them explained...." Read more

"A interesting conclusion to a fast paced partnership of 2 keen minds. I enjoyed this book only because of my computer geek background...." Read more

"...The resolution came about abruptly and rendered 60% of the plot line irrelevant. Jessica is cool but would love for another Theo novel." Read more

14 customers mention "Credibility"5 positive9 negative

Customers have mixed opinions about the book's credibility. Some find it believable and truthful, while others feel the explanations are less satisfactory and the book is not as interesting as the first one. The beginning chapter doesn't hold their attention, and the twists and turns don't appeal as much as the first book.

"...given to the motivations of the actors so that the whys are less than satisfactory. Clever book, though and a good read." Read more

"...are well-limned, with options for expansion, freshness and believability...." Read more

"...There was no thrill in the conclusion, it was lacking......." Read more

"Enjoyed the twist & turns but not as much as the first book. I want more excitement when I read a book" Read more

13 customers mention "Pacing"9 positive4 negative

Customers have mixed opinions about the pacing. Some find it fast and enjoyable, while others find it too far-fetched and dull.

"A interesting conclusion to a fast paced partnership of 2 keen minds. I enjoyed this book only because of my computer geek background...." Read more

"...I absolutely enjoyed the writer's style, the story pacing, character development, and the intruguing plot...." Read more

"...The plot was interesting if a bit too far-fetched in places." Read more

"...I like most of the stuff that Mr. Mayne writes... they are typically fast paced and enjoyable reads...." Read more

Top reviews from the United States

  • Mike - Go PACK!
    5.0 out of 5 stars Decent read
    Reviewed in the United States on March 2, 2025
    Verified Purchase
    I enjoy the Dr Cray character. He's intriguing while curious. The book is a bit too scientific at times, but it probably needs that element to convince the reader it's a credible story.
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  • K. Stampe
    4.0 out of 5 stars the science was hard but the banter fun
    Reviewed in the United States on November 28, 2024
    Verified Purchase
    I wish Mayne would use chapter headings to indicate a shift of speaker. It’s always jarring to get three paragraphs in and realize the first person perspective had changed. The banter between Theo and Jessica is a lot of fun. Pretty ultimate use of pop culture at the climax.
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  • Diane
    5.0 out of 5 stars Low 5:Mostly it is very good, but the ending is a little flat.
    Reviewed in the United States on October 5, 2022
    Verified Purchase
    In this book, Theo Cray and Jessica Blackwood investigate evidence of communication with aliens: real or a complex hoax, with adventures in the jungle and murder--attempted and successful-- mixed in. This is not a book for everyone; it does depend upon some general understanding of science and technology. I am just science and math literate enough to follow the general sense of the premise and investigation, but not good enough to find any holes in the logic. (I would enjoy hearing a good evaluation from someone with a stronger background.) In addition to a plot that moves at a brisk pace, Mayne sprinkles little factoids into the narrative that add their own independent, if peripheral interest, and I find in them some compensation for what seemed like a rather quick finish. The book is well-steeped in scientific reasoning with much less attention given to the motivations of the actors so that the whys are less than satisfactory. Clever book, though and a good read.
    One person found this helpful
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  • Prime Customer
    3.0 out of 5 stars Scientific Terminology & Disappointing Conclusion
    Reviewed in the United States on March 21, 2024
    Verified Purchase
    The plot overall was ok but thought the 1st book in the series was a better written story by far.

    I realize the 2 main characters are written as highly educated and intelligent people but....
    The author spent pages that added up to chapters on scientific and technological terms and information that I (a.) Did not understand, (b.) Had no desire to understand, (c.) Took away the tension and excitement of the story and (d.) Could have been edited out since I understood the conclusion & had skipped all the jargon that meant zero to me.

    I admit, I did not figure out "who did it" but one of the main characters figured it out after hearing 1 sentence from another character. (Trying not to give spoilers.). It was both a surprise and a disappointment. There was no thrill in the conclusion, it was lacking....

    The storyline was not tight & jumped again & again to new locations & new ideas with not all of them explained. If I write anymore, I will deduct another star.

    I do enjoy the characters of Blackwood & Cray together. I would read another book about them. I would hope a third book would include more interaction between them. I really enjoyed the first book in the series because of their relationship & the created dialogue.
    3 people found this helpful
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  • Patty
    4.0 out of 5 stars No murder mystery just intrigue
    Reviewed in the United States on June 29, 2024
    Verified Purchase
    Different from his serial killers but just as interesting to read and get to Yourself involved in with all the surprises and characters.
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  • Geemoe Knee
    5.0 out of 5 stars Two of my favorite characters, Jessica and Theo, solve multiple mysteries/ crimes.
    Reviewed in the United States on September 2, 2024
    Verified Purchase
    If you've read any of the Theo Cray or Jessica Blackwood novels you'll love this too. Must admit I spent a lot of time researching concepts, places, and theories presented in this novel and wonder how Mr Mayne so skillfully puts all this together. Looking forward to the next read. HooYah!
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  • Arthur Cooke
    5.0 out of 5 stars FINE SERVICE
    Reviewed in the United States on February 6, 2025
    Verified Purchase
    WAS COMPLETELY SATISFIED WITH PRODUCT
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  • Frank
    4.0 out of 5 stars Strange to call it sci fi
    Reviewed in the United States on March 3, 2025
    Verified Purchase
    Starts out promising about deep space communication with a possible alien probe/entity 👽. But dissolves into a who done it detective novel, no sci fi here. Good writing but disappointed.
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Top reviews from other countries

  • Chris.
    5.0 out of 5 stars A Great Read .
    Reviewed in the United Kingdom on April 21, 2024
    Verified Purchase
    It's a great read. I'm glad that Theo Cray knows what's going on because some of it goes straight over my head. That said, it's still a compelling read that keeps you unable to put it down or concentrate on anything else.
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  • alessandro
    4.0 out of 5 stars Good job
    Reviewed in Italy on January 21, 2024
    Verified Purchase
    As always, Mayne wins with his intelligence and scientific culture. Oh, I forgot... he also writes well!
    Report
  • Othello1971
    5.0 out of 5 stars Love these books
    Reviewed in Australia on November 1, 2023
    Verified Purchase
    Interesting, intellectually stimulating, action packed. I quite like the pairing of Theo and Jessica. Makes for good plot lines and craziness!

    Enjoyed!!!
    Report
  • J A L Henderson
    4.0 out of 5 stars Intriguing and compelling story
    Reviewed in the United Kingdom on January 27, 2025
    Verified Purchase
    Great book with an unusual story line. I like the way Andrew Mayne uses science and enjoy the twists in the story. Have now read all the DarkDive and Naturalist series and I think these two Theo and Jessica books are the best yet.
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  • Marney Black
    3.0 out of 5 stars Slow in places
    Reviewed in Australia on May 10, 2024
    Verified Purchase
    Started out way too heavy on the science, I found it hard to stay interested. Improved after the first quarter or so, once the Jessica sections began to provide a change of scenery. Got overly technical again towards the end. As with the first book in this joint series the switching first person points of view were distracting. I'm not sure if I will continue with Theo Cray, but I highly recommend the author's Underwater Investigation Unit series.
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