Split Signal

by Davis Bunn

Peyton's migraines won't stop . . . but they're not what they seem. Peyton isn't convinced when Miami police declare her sister Evelyn's death part of a multiple suicide pact and close the case. So when the FBI reveal they believe Evelyn was murdered, and there could be a link to the recent FBI sting operation the sisters took part in, she agrees to work undercover at Etico, a California start-up turning the world of social media upside-down. But Peyton is also experiencing uncontrollable migraines . . . and they're becoming more frequent. Scientists are perplexed that her brain doesn't follow normal activity during a migraine attack--in fact, the two sides appear to be working independently of each other. As alarming discoveries are made at Etico, Peyton is sure these are not only connected to her sister's death but also her migraines . . . Can she find the missing link that will expose the truth?

Genres: Science Fiction

230 pages, Kindle Edition

Published August 4, 2026

About the author

Davis Bunn is an internationally-acclaimed author who has sold more than eight million books in twenty languages.

Honored with four Christy Awards for excellence in historical and suspense fiction, Davis was inducted into the Christy Hall of Fame in 2014.

His bestsellers include The Great Divide, Winner Take All, The Meeting Place, The Book of Hours, and The Quilt. A sought-after lecturer in the art of writing, Bunn was serves as Writer in Residence at Regent's Park College, Oxford University.

Davis Bunn also writes under the names Thomas Locke (for his epic fantasy and techno-thriller novels) and T. Davis Bunn (for books published prior to 2002).

Reviews

[Maxine Burns · Rating 3 out of 5]

I wasn’t sure at the start of this story where it would go. By midpoint it picked up speed (for me) and had a lot more to the story. It was action-packed with a few twists and turns along the way. A good read overall.

[Un_elote · Rating 2 out of 5]

The concepts were thrilling enough to keep me reading but instead of being a mystery, I was left confused. It felt like I was always on the outside of the plot, just about to put the pieces together with the characters but then - nothing. It tried to develop a romance near the end that never gets fully fleshed out. There was room for more political comments given the conflict. Ultimately, I wanted to like it but don't even know what was going on.

[Sandra Arbeni · Rating 5 out of 5]

Engaging.

What a wonderful work of fiction which kept me so engaged that it was hard to put down. It was s thriller of who could be trusted
I highly recommend it and you won't be disappointed.

[larry grimes · Rating 3 out of 5]

plotless til the end

The plot drifts along without any obvious current looking for the channel….‘I’m missing something’….until it drops suddenly down a waterfall when the author seemed to have his own headache from writing. Characters were as shallow as the plot.

[Jerry Summers · Rating 3 out of 5]

3.5* interesting world of social media and mind control. Located in Miami area.