The Little Season Series by Kasey Michaels

The Dashing Duke-to-be and the Daring Debutante Gabriel Sinclair has returned from battle as the reluctant heir to a dukedom. As if his new responsibilities weren’t enough, his aunt enlists him to guide a young heiress through London’s Little Season. Surprisingly, Miss Thea Neville is not the tedious obligation he expected. She’s exotic and enchanting – and utterly unaware of the secret poised to destroy her family’s reputation... moreThe Dashing Duke-to-be and the Daring Debutante Gabriel Sinclair has returned from battle as the reluctant heir to a dukedom. As if his new responsibilities weren’t enough, his aunt enlists him to guide a young heiress through London’s Little Season. Surprisingly, Miss Thea Neville is not the tedious obligation he expected. She’s exotic and enchanting – and utterly unaware of the secret poised to destroy her family’s reputation. After ten years in America, Thea is ready to do her duty and marry well. Deportment, modistes, balls – the ton is a nightmare she couldn’t navigate without Gabriel’s help. She really should accept the first bachelor who offers for her. But instead she’s discovering a dangerous attraction to her wickedly handsome chaperone – which will change her plans completely! less

Includes bonus story Winter's Camp London's Little Season has never been so scandalous  It's the kind of vow often made on the battlefield. Darby Travers, Viscount Nailbourne, never imagines he'll have to honor it. Yet here she is on his doorstep—his late comrade's young daughter, and Darby's new ward. Worse, she comes with the most overprotective, mistrustful, bothersome chaperone—the child's aunt, Sadie Grace Boxer... moreIncludes bonus story Winter's Camp London's Little Season has never been so scandalous  It's the kind of vow often made on the battlefield. Darby Travers, Viscount Nailbourne, never imagines he'll have to honor it. Yet here she is on his doorstep—his late comrade's young daughter, and Darby's new ward. Worse, she comes with the most overprotective, mistrustful, bothersome chaperone—the child's aunt, Sadie Grace Boxer. Darby is quite sure that behind her lovely facade, the woman is guarding a secret.  Sadie Grace faced many trials working in her brother's surgery, but none prepared her for the world she's thrust into with his passing. Navigating the ton , with its endless ball gowns and parade of parties, is difficult enough, but hiding the truth about her niece while the sophisticated viscount watches her every move proves nearly impossible—particularly when his searing gaze tempts her to bare all. But when her family's past catches up with her, she'll have to trust in Darby…no matter the cost to her heart. less