She has loved him secretly for years. Miss Helen Langley felt the first pangs of love seven years ago when her brother’s best friend examined her sprained ankle. She has suffered in silence ever since. A lady might engage in mild flirtation, but Nicholas St. Clair is considered part of her family and acts like a brother. When a fortune-teller insists Helen will find her future husband sitting in a cowpat, she fears she is destined to marry a farmer, not the impeccably dressed Mr St. Clair. Honour demands he treat her like a sister. Nicholas has sworn never to marry. His parents’ disastrous relationship was enough to keep any man from the marriage mart. Besides, the only woman to capture his heart treats him like a brother, leaving him no choice but to maintain an indifferent facade. Fate has other plans. But when Nicholas and Helen are embroiled in a case of blackmail and murder, they must work together to find the villain. Will Helen’s secret love for Nicholas ever be more than an obsession? Will Nicholas defy his friend and tell Helen how he feels?

Visiting the devil in the dead of night was not a good idea. But if Miss Mina Stanford hoped to survive to see her next birthday, she must persuade the dangerous Devon Masters not to fight a duel with her brother. Of course, her task would have been much easier had she not been mistaken for a Cyprian and ushered up to his bedchamber. But that fated meeting changes her life in ways she could never have imagined. For when Mr Masters is arrested for her brother’s murder, Mina is the only person able to prove his innocence. Should a lady do what is right even if it leads to ruin? Will Mr Masters prove he is not so wicked after all?

She refuses to be any man’s wife, let alone a duchess. Having suffered a wicked betrayal, Miss Lillian Ware cannot trust anyone, least of all the scoundrels roaming the ballrooms. Indeed, what better way to help naive debutantes than to write a book detailing how one might spot a rogue? Gathering information is a dangerous game, especially when a certain duke discovers her secret. A scandalous offer from a duke. For five years, Callan Maclean has scored his name on Miss Ware’s dance card. For the last three years, she has disappeared before he can claim his dance. But when he finds her spying on the ton, he offers another suggestion. He will educate her in the ways of a scoundrel himself. But matters take an unexpected turn when they witness an abduction and feel compelled to investigate.

For Ailsa MacTavish, collecting old books was as much a hobby as her verbal spars with Viscount Denton. They were bitter rivals, barely friends, but she never felt more alive than when they clashed swords. As he’d made an oath not to marry for years, she considered him a safe companion for a would-be spinster. But one mistake at an auction leaves her in possession of an old grimoire. It wouldn’t be a problem had a mystic at the fair not told her she would marry a man who puts her under a spell. Now someone is willing to resort to great lengths to steal the book, and danger lurks in the shadows. Forced to work with the handsome viscount, Ailsa fears there might be some truth to the mystic’s prediction. The more time she spends with Lord Denton, the more his wicked charm leaves her enchanted.