In New York Times bestselling author Amelia Grey’s Rogues’ Dynasty series, heroines learn that sometimes the only man you can trust with your life is a Regency rake.

Miss Arianna Sweet’s beloved father discovered a formula which could be the cure for consumption. But before he could make his discovery known, he died suddenly and under suspicious circumstances. While determined to bring his formula to the attention of London’s prominent medical society, Arianna suffers a series of increasingly dangerous accidents and is forced to conclude that someone is after the formula, and her very life may be in danger.

Rushing to the countryside to her father’s old friend Lady Elder, Arianna is shocked to find that Lady Elder has passed on and she must rely on that venerable lady’s grandson, Lord Morgandale - one of society’s most notorious and deadly handsome rakes…