Rules of the Heart

A Sweeping Regency Romance Set in 18th-Century England

Janice Hadlow

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English

MANTLE
26 August 2025

Fiction & Literature; Historical romance; Historical fiction

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Inspired by real history, Rules of the Heart is the sweeping new novel from the bestselling author of The Other Bennet Sister, Janice Hadlow.

Propriety of conduct was never my forte, so that if any lady chooses to make observations, they will always have enough to find fault with.

Lady Henrietta Bessborough seemingly has it all: wife to a lord and sister to a duchess, she is welcomed in all the most fashionable circles. Yet she yearns for something her marriage has failed to offer: true love.

When she meets the captivating Lord Granville, twelve years her junior and a famous heartbreaker, she at first dismisses his advances as opportunistic flattery. But then she sees another side to him - a side she realizes she cannot resist.

As she plunges into an all-consuming affair, Henrietta finds herself torn between her duty and her deepest desires. For in a world where appearances are everything, each anxious but besotted step she takes leads her ever closer to scandal and ruin . . .

Praise for The Other Bennet Sister:

'Immersive and engaging' - The Guardian

'It's difficult not to race through those final pages' - Jo Baker, bestselling author of Longbourn

'A novel that will delight Pride and Prejudice fans' - The Independent

By: Janice Hadlow
Imprint: MANTLE
Country of Publication: United Kingdom
Dimensions: Height: 237mm, Width: 156mm, Spine: 38mm
Weight: 584g
ISBN: 9781509841981
ISBN 10: 1509841989
Pages: 480
Publication Date: 26 August 2025
Recommended Age: From 18 years
Audience: General/trade , ELT Advanced
Format: Paperback
Publisher's Status: Active

Janice Hadlow was born in London and studied History at university. After a few years working for the House of Commons, she joined the BBC and became a television producer. She was the recipient of a number of awards, and is a Fellow of the Royal Television Society, as well as of King's College, University of London. Her first novel, The Other Bennet Sister, is soon to be a BBC TV series. Rules of the Heart is her second novel.

Reviews for Rules of the Heart: A Sweeping Regency Romance Set in 18th-Century England

Impeccably researched, this lifts Mary from obscurity, as she breaks out of her mother's world and follows her own path -- Daily Mail on The Other Bennet Sister Immersive and engaging -- The Guardian on The Other Bennet Sister A novel that will delight Pride and Prejudice fans -- Independent on The Other Bennet Sister It’s difficult not to race through those final pages -- Jo Baker, author of Longbourn, on The Other Bennet Sister I absolutely love this novel – as will any young woman who has felt herself plain, shy, bookish and crushed -- Amanda Craig, author of The Three Graces, on The Other Bennet Sister This gorgeous book pays homage to Pride and Prejudice – and follows Mary Bennet, the overlooked middle Bennet sister. It’s a wonderfully warm, comforting read – perfect on a winter’s night -- The Sun on The Other Bennet Sister Puts Mary front and centre stage exploring why she was so heartbreakingly sidelined by Mrs Bennet and gives humour and sensitivity to the most overlooked of the sisters -- Stylist on The Other Bennet Sister