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Every Second Choice You Never Made

A physicist finds her own signature on an experiment she has not run yet. Marcus Oyelaran's thriller turns a laboratory scandal into a chase through the decisions we abandon.

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Part of Series

A standalone novel, though it shares its Lagos setting with The Demon of Unrest.

From the Publisher

Published by Harrowgate Press with a jacket designed by Ada Nwosu.

Print length

384 pages, set in a text designed for fast reading.

Publish & Reading age

First published August 2022. Written for adult readers.

Unforgettable Chapters

Interior spread 1 from The Quantum Paradox
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Interior spread 4 from The Quantum Paradox

Why You’ll Love “The Quantum Paradox”

Physics that behaves

The science is checked and kept honest. Nothing in the plot depends on a rule the book has not already taught you.

Chapters built for one more

Short scenes, hard cuts, and a habit of ending on the sentence you needed the answer to.

A villain with a thesis

Dr. Kayode is not after money or power. He is after a result, which is far harder to talk him out of.

Reader Testimonials

What Readers Are Saying

I finished The Dragon's Embrace on a Tuesday and started it again on the Wednesday. Elena writes the kind of sentence you read twice — once for the story and once because you cannot believe she got away with it.
5 out of 5
Darlene Robertson
Bookseller, Coldharbour Books
I have run a book club for eleven years and I have never seen a novel split a room so happily. We argued about the ending for two hours and everybody was right.
5 out of 5
Arlene McCoy
Book club host
The research never shows, which is how you know how much of it there was. The city in these books feels older than the plot that walks around in it.
5 out of 5
Cameron Williamson
Editor, Marginalia
My teenager took The Enchanted Realm off my nightstand and I did not see it again for a week. That has never happened with anything I recommended out loud.
5 out of 5
Jenny Wilson
Librarian
I came for the mystery and stayed for the two people arguing in the kitchen on page ninety. Nobody writes a small scene better.
5 out of 5
Ronald Richards
Reviewer, The Paper Lantern
I read a lot of thrillers for work. This is the only one this year where I did not guess the turn, and I went back afterwards and found it had been signposted three times.
5 out of 5
Esther Howard
Podcast host, Second Draft
Whispers of the Forgotten is the book I hand to people who tell me they have stopped reading. It has a ninety percent success rate.
5 out of 5
Guy Hawkins
Bookshop owner
I saw Elena read at Northgate last spring. She read the chapter nobody likes, on purpose, and by the end the room liked it.
5 out of 5
Kristin Watson
Festival programmer
The craft book is worth it for the chapter on revision alone. It is the first time anyone has described what cutting actually feels like.
4 out of 5
Brooklyn Simmons
Writing tutor
FAQ

Questions about “The Quantum Paradox”

Success Story

Chosen as a summer read by three national newspapers and optioned for television within a month of publication.

120k+

Copies sold

3k+

Reader reviews

18+

Translations underway