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The Fifth Letter
The Fifth Letter
Mar 4, 2026 5:20 AM

Author:Nicola Moriarty

The Fifth Letter

Four friends. Five Letters. One Secret.

The scandalous breakthrough novel from Nicola Moriarty that will leave you asking, how well do I really know my friends?

Joni, Trina, Deb and Eden.

Best friends since the first day of school. Best friends, they liked to say, forever.

But now they are in their thirties and real life - husbands, children, work - has got in the way. So, resurrecting their annual trip away,Joni has an idea, something to help them reconnect.

Each woman will write an anonymous letter, sharing with their friends the things that are really going on in their lives.

But as the confessions come tumbling out, Joni starts to feel the certainty of their decades-long friendships slip from her fingers.

Anger. Accusations. Desires. Deceit.

And then she finds another letter. One that was never supposed to be read. A fifth letter. Containing a secret so big that its writer had tried to destroy it. And now Joni is starting to wonder, did she ever really know her friends at all?

'With secrets and intrigue, this is a compulsive read' Sun on Sunday

'Intrigue, hatred and accusations - phew, it kept me guessing to the end' The Sun

'Entertaining and easy to read' Sunday Mirror

'A darkly humorous story about friendship' Best

Reviews

Dramatic, mysterious and compelling . . . it's easy to read this book in one sitting

—— Vogue

Younger sister Nicola gives novelists Liane and Jaclyn Moriarty a serious run for the literary awards in this pacey, circle-of-friends thriller, which accelerates in its intensity and sheer originality with every page . . . An Agatha Christie Mousetrap of a "who-wrote-it?" to solve

—— Australian Women's Weekly

The premise in this third novel from one of the clever Moriarty sisters is irresistible . . . You'll be hard pressed not to giggle and compare these girls to your own besties

—— Daily Telegraph

Page-turning mystery

—— Instyle

It's hard not to get roped into this delightfully twisted tale of suspicion and mystery intertwined with a frank look at how relationships evolve and sometimes become obsolete. Moriarty has a knack for making you feel like one of the girls, compelling you to solve the mystery of the author of the fifth letter

—— My Weekly Preview

The brilliant unraveling of this sisterhood of secrets will leave you wondering how well you really know the best friends you've known forever. A must-read before your next Girl's Night

—— Mary Hogan

Lifelong friendships, secrets, and pages I couldn't turn fast enough. The Fifth Letter is one of my favorite books this year, and Nicola Moriarty is now on my short list of favorite women's fiction authors

—— Susan Elizabeth Phillips

Readers . . . will race to the end as a credit to Nicola's fine sense of pacing and suspense. An author to watch

—— Tracy Babiasz , Booklist

The meandering stories of these women are held together with the powerful question of who wrote the last letter, which reveals just how precarious childhood friendships are . . . the book adeptly exposes the striking differences among the four friends and the five letters

—— Publishers Weekly

A delightful, heartwarming exploration of the twists and turns of true friendship, The Fifth Letter was simply delicious from the very first page to the last. Relatable characters, a fast-moving plot and just the right amount of mystery. I was hooked!

—— Rachael Johns

A brilliant and compelling novel where a twenty-year-old friendship is tested by the secrets they have been keeping. The plot is fascinating and I found the characters likeable and irritating at the same time. Playing on the anonymity of the letters, the author creates suspense and anticipation as truths - and lies - are spilled page after page

—— Chicklit Club

This is one of those books you have to make sure you've got nothing scheduled when you start reading. Because once you start, you're not going to want to stop. Page turner indeed. Wow. And some scenes that made me cry

—— Sharpest Pencil Blog

With secrets and intrigue, this is a compulsive read

—— Sun on Sunday

Entertaining

—— Sunday Mirror

A darkly humorous story about friendship

—— Best

Intrigue, hatred and accusations - phew, it kept me guessing to the end

—— Sun

The premise and its execution will grab readers and refuse to let go. Readers may pick this one up to see how Moriarty's writing compares to her sister Liane's wildly popular novels, but they'll race to the end as a credit to Nicola's fine sense of pacing and suspense. An author to watch.

—— Booklist

Entertaining and easy to read

—— Sunday Mirror

Honest, intimate and ultimately unforgettable

—— Stylist

Sympathetic, subtle and sometimes shocking

—— Emma Healey

Plain and beautiful...Strout writes with an extraordinary tenderness and restraint

—— Kate Summerscale

One of this year's best novels: an intense, beautiful book about a mother and a daughter, and the difficulty and ambivalence of family life

—— Marcel Theroux

Elizabeth Strout's prose is like words doing jazz

—— Rachel Joyce

Elizabeth Strout's Olive Kitteridge is the best novel I've read for some time

—— David Nicholls

An exquisite novel of careful words and vibrating silences

—— New York Times Book Review 100 Notable Books of 2016

In this quiet, well observed novel, a mother and her mysteriously ill daughter rebuild their relationship in a New York hospital room. Deft and tender, it lingers in the mind

—— Daily Telegraph Books of the Year

A worthy follow-up to Olive Kitteridge

—— David Nicholls , Guardian Books of the Year

I loved My Name is Lucy Barton: she gets better with each book

—— Maggie O'Farrell , Guardian Books of the Year

The standout novel of the year - a visceral account of the relations between mother and daughter and the unreliability of memory

—— Linda Grant , Guardian Books of the Year

In a brilliant year for fiction, I've admired the nuanced restraint of Elizabeth Strout's My Name is Lucy Barton

—— Hilary Mantel , Guardian Books of the Year

Elizabeth Strout's My Name is Lucy Barton shouldn't work, but its frail texture was a triumph of tenderness, and sent me back to her excellent Olive Kitteridge

—— Cressida Connolly , The Spectator

A rich account of a relationship between mother and daughter, the frailty of memory and the power of healing

—— Mark Damazer , New Statesman

This physically slight book packs an unexpected emotional punch

—— Simon Heffer , Daily Telegraph

A novel offering more hope

—— Daisy Goodwin , Daily Mail

My Name Is Lucy Barton intrigues and pierces with its evocative, skin-peeling back remembrances of growing up dirt-poor.

—— Ann Treneman , The Times

Masterly

—— Anna Murphy
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