Horry Winwood doesn't play by the rules. So when her family are near ruin and her sister is about to enter a loveless marriage to a wealthy man to settle the family debts, young and headstrong Horry proposes to marry him instead. As her new husband's attentions fall elsewhere, Horry feels increasingly unhappy. Then she meets the attractive and dangerous Lord Lethbridge, and her days suddenly become more exciting. But there is bad blood between Horry's husband and Lord Lethbridge, and as complications and deceptions mount, the social tangle grows ever trickier to unpick.

Based on a story she had written for her brother and published when she was 19 years old, The Black Moth is set during the Georgian era in the 1750s and follows Lord Jack Carstares, the eldest son of the Earl of Wyncham. Six years ago, Jack took the blame when his younger brother Richard cheated at cards. Jack consequently faced social exile and fled England for the European continent. He has now secretly returned, robbing carriages as a highwayman.

The Honourable Christopher Fancot, on leave from the diplomatic service in the summer of 1817, is startled to find his entrancing but incorrigibly extravagant mother on the brink of financial and social ruin - and more than alarmed to find that his twin, Evelyn, has disappeared without trace. Christopher - Kit - is forced into an outrageous masquerade by the tangled affairs of his wayward family: his rigid uncle, Lord Brumby; the surprisingly wily Sir Bonamy Ripple; the formidable old Lady Stavely and Evelyn's betrothed, Cressy.

The legend of the Headless Horseman and a proposed marriage de convenance both have their impact on the mystery of a golden talisman ring and Lord Lavenham's young heir, Ludovic. Neither Sir Tristram Shield nor Eustacie, his young French cousin, shares the slightest inclination to marry one another, yet it is Lord Lavenham's dying wish. For there is no one else to provide for the old man's granddaughter while Ludovic remains a fugitive from justice.

Adam Deveril, the new Viscount Lynton and a hero at Salamanca, returns from the Peninsula War to find his family on the brink of ruin and the broad acres of his ancestral home mortgaged to the hilt. It is Lord Oversley, father of Adam's first love, who tactfully introduces him to Mr Jonathan Chaleigh, a city man of apparently unlimited wealth with no social ambitions for himself, but with his eyes firmly fixed on a suitable match for his one and only daughter.