New York Times best-selling author Stephanie Laurens presents a brash, bold new series. They're battle-hardened, sinfully wealthy, completely unstoppable - and all male: Four officers of the Crown, fighting against a deadly foe known only as the Black Cobra.

Penelope Ashford, Portia Cynster's younger sister, has devoted her life to the care of orphans. But lately, her charges seem to be disappearing without a trace. Penelope enlists investigator Barnaby Adair to solve the mystery. Adair agrees, intrigued by both the case and by Penelope.

In a quiet moonlit courtyard, Helena encounters a handsome and mysterious Englishman. Before parting, he rewards her with a special kiss - a delicious, enticing, unforgettable kiss that makes her whole body shiver with desire. Helena doesn't yet know that she has met her destiny - and he is Sebastian Cynster, Duke of St. Ives.

Lord Randolph Cavanaugh is loyal and devoted - but only to family. To the rest of the world, he's aloof and untouchable, a respected and driven entrepreneur. But Rand yearns for more in life, and when he travels to Buckinghamshire to review a recent investment, he discovers a passionate woman who will challenge his rigid self-control....

You are cordially invited to the wedding of Miss Heather Cynster... but not before she encounters kidnappers, danger, and a daring rescue at the hands of Viscount Breckenridge. Determined to hunt down her very own hero, one who will sweep her off her feet and into wedded bliss, and despairing of finding him in London’s staid ballrooms, Heather Cynster steps out of her safe world and boldly attends a racy soiree. But her promising hunt is ruined by the supremely interfering Viscount Breckenridge, who whisks her out of scandal....

Hugo Wilde, the duke of Lindow, has a drafty castle, eight naughty children - and no wife. Ophelia, Lady Astley, has a fine house, one well-behaved daughter - and no husband. Hugo takes one look at Ophelia and loses his heart, but she doesn’t want more children or a castle. She takes one look at him and heads for her carriage. Desperate to find a duchess, Hugo identifies an appropriate lady to woo. Yet when he meets Ophelia again, the duke realizes that he will marry her, or no one. 

A past kiss with adorably bookish Miss Olivia Norley should be barely a memory for Marlowe Drake, the duke of Thornstock. After all, there are countless debutantes for a handsome rakehell to charm beyond a young lady whose singular passion is chemistry - of the laboratory type. But Thorn has not forgotten - or forgiven - the shocking blackmail scheme sparked by that single kiss, or the damage caused to both their names. Now Thorn’s half brother, Grey, has hired the brilliant Miss Norley for her scientific expertise in solving a troubling family mystery.

Sebastian Cynster knows time is running out. If he doesn't choose a wife soon, his female relatives will line up to assist him. Yet the current debutantes do not appeal. Where is he to find the right lady to be his marchioness? Then Drake Varisey, eldest son of the Duke of Wolverstone, asks for Sebastian's aid.

It's December 1837, and the young adults of the Cynster clan have succeeded in having the family Christmas celebration held at snowbound Casphairn Manor, Richard and Catriona Cynster's home. Led by Sebastian, Marquess of Earith, and by Lucilla, future Lady of the Vale, and her twin brother, Marcus, the upcoming generation has its own plans for the holiday season.

Despite being surrounded by her happily wed sisters, Nora Langley prefers botany to ballrooms and would rather spend a lifetime in her laboratory than consider affairs of the heart. An expert herbalist, Nora has been masquerading as her late physician father for years, dispensing invaluable medical advice. She corresponds with people all over the world, including an old army colonel. But when the man shows up on her doorstep, he is nothing like she expected - he is a young, handsome heir to a dukedom who suddenly threatens everything she holds dear. 

A series of stepfathers and a difficult childhood have left Fletcher “Grey” Pryde, fifth duke of Greycourt, with a guarded heart, enviable wealth, and the undeserved reputation of a rogue. Grey’s focus on expanding his dukedom allows him little time to find a wife. But when his mother is widowed yet again and he meets the charmingly unconventional woman managing his stepfather’s funeral, he’s shocked to discover how much they have in common. Still, Grey isn’t interested in love, no matter how pretty, or delightfully outspoken, the lady.... 

Shopgirl Poppy Fairchurch knows it's pointless fantasizing about the Duke of Autenberry. Still, dreams can't hurt anyone, unlike the carriage Poppy spies bearing down upon the unsuspecting duke. After she pulls him to safety, the duke lapses into a coma, and Poppy is mistaken for his fiancée. But one person isn't fooled: his arrogant and much too handsome half brother, Struan Mackenzie. Soon Poppy isn't sure what she wants more: the fantasy of her duke or the reality of one smoldering Scot who challenges her.

Honoria Smythe-Smith is: A) a really bad violinist; B) still miffed at being nicknamed "Bug" as a child; C) not in love with her older brother's best friend, D) all of the above.

Lord Winter Vance, a notorious scoundrel and the marquess of Roth, must marry to save his inheritance, but a wife is the last thing he needs. Determined to carry on his rakish ways provoking his straitlaced duke of a father and scandalizing the ton, the minute Winter ties the knot, he dumps his starry-eyed debutante of a bride at his country estate and hies back to London. But three years later, forgotten in slumbering Chelmsford while her husband gallivants in town, Lady Isobel Vance decides enough is enough, and she's ready to take matters into her own hands.

Everyone expects Billie Bridgerton to marry one of the Rokesby brothers. The two families have been neighbors for centuries, and as a child the tomboyish Billie ran wild with Edward and Andrew. Either one would make a perfect husband...someday.