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Simultaneous: A Novel book cover by Eric Heisserer
Paperback

Simultaneous: A Novel

by Eric Heisserer

Paperback · 288 pages Flatiron Books · 2026

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Paperbackfrom $9.31
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About the book

Simultaneous

A mind-bending speculative thriller where past lives collide with present danger and the
truth follows you across every timeline.

Federal agent Grant Lukather works in a shadow division of Homeland Security known only as Predictive Analytics, a unit trained to detect catastrophic events before they occur. When an anonymous tip warns of a deadly explosion in New Mexico, the case quickly spirals into something no model or agent has ever prepared for. Grant’s search leads him to Sarah Newcomb, a therapist whose unusual method of past-life hypnosis has revealed something impossible: a pattern connecting her patients to crimes happening right now.

As Grant investigates a disturbing copycat murder in Colorado, the two uncover a phenomenon that stretches across multiple states, multiple timelines, and multiple versions of the same lives. With the help of Sarah’s most troubled patient, they form an unlikely trio navigating shifting realities, fractured memories, and a killer who seems to exist everywhere at once.

Time is folding in on itself. Identities are merging. And every choice they make in one life echoes dangerously into the next.

From the Oscar-nominated screenwriter of "Arrival," Simultaneous delivers:
Stunning reveals and reality-bending twists
A tense, race-against-time serial-killer mystery
A supernatural edge rooted in fate, free will, and the weight of past lives
Characters whose connections deepen across lifetimes

Perfect for fans of early Dean Koontz, Blake Crouch, and mind-twisting supernatural thrillers. If your past is chasing you, how far can you run when it knows your future?

“A twisty, mind-bending thriller that will keep you guessing until the final gut punch.” —Leigh Bardugo



The book, Simultaneous: A Novel [Bulk, Wholesale, Quantity] ISBN#9781250384331 in Paperback by Eric Heisserer may be ordered in bulk quantities. Minimum starts at 20 copies. Availability based on publisher status and quantity being ordered.

Details

Publisher
Flatiron Books
Author
Eric Heisserer
Format
Paperback
Published
Oct 27, 2026
ISBN-13
9781250384331
ISBN-10
1250384338
Pages
288
Carton quantity
28 copies
Buying for a group

Simultaneous in bulk: pricing

Volume pricing applies automatically in your cart. No codes, no account needed.

CopiesPrice per copyYou save
20 – 99 $11.39 40% off list
100 – 249 $11.01 42% off list
250 – 499 $10.06 47% off list
500 – 999 $9.68 49% off list
1,000+ $9.31 51% off list
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