Age Gap Romance · Older Woman · Younger Man · Suspense

She's in her fifties. He's 35. Someone wants them both dead.

Fatal Equation is an age-gap romantic suspense that takes the older woman / younger man dynamic seriously — with warmth, real chemistry, and a villain who is absolutely not finished.

Read Book One on Amazon Meet Laura & Ali

Two people who shouldn't work — and absolutely do

Laura O'Brien

Wealthy widow. Fifties. Fiercely independent.

Laura inherited a fortune from Ireland's most successful racehorse breeder. She has everything — except the life she actually wants. She is not looking for love. She is certainly not looking for a man twenty years younger.

Ali Kurmi

Songwriter. 35. Carrying secrets of his own.

Ali is a British-Indian corporate DJ on the edge of real success. He has unknowingly crossed a line in the Liverpool underworld — and a ruthless boss has marked him for death. He is not looking for complications. He finds them anyway.

Together, they build something neither expected. But Laura's stepdaughter Stephanie has been planning her revenge for years — and she is not the only threat closing in.


The Fatal Equation Trilogy

All books are standalone. Start anywhere — or read in order for the full journey.

Book One

Fatal Equation

The beginning of Laura and Ali's story. A love that defies expectations — and a danger neither of them sees coming until it is almost too late.

eBook · Paperback · Audiobook

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Book Two

Fatal Equation: Sweet Revenge

Laura and Ali have finally found peace. But Stephanie hasn't finished. A darker, grippier second chapter — with a villain who is extraordinary in her obsession.

Released April 2026

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Tropes and themes in Fatal Equation


Readers on the age-gap romance

"An intertwining tale of a love that doesn't conform to society's self-limiting rules, shot through with a fine understanding of the often unspoken side of life's relationships."
— Richard, Amazon Review
"I absolutely love this book. It has everything you could possibly wish for... can't wait for the next one!"
— D.H., Amazon Review
"A moving tale of love that triumphs over pervasive greed and preposterous revenge — a celebration of friendship and friends who stand by each other whatever the odds."
— S.D.S., Amazon Review
"Interesting characters, tricky relationships, all weaved into a storyline that is totally addictive. More please."
— Amazon Review

Readers of these authors enjoy Fatal Equation

Jojo Moyes
Emotional, mature love stories
Lisa Jewell
Dark domestic suspense
Robyn Carr
Community warmth and found family
Liane Moriarty
Sharp wit and family secrets

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