Smart and perceptive Cassandra Benton has dreamed of becoming a lawman since childhood, just like her twin brother Charles. Since policing was not available to women in Regency England, Cass had to help her brother with his investigations from behind the scenes. One day, the Bentons rescued the Northbrook family, and Marquis George Goodwin never forgot the beautiful investigator.When a long-standing dispute suddenly resurfaces and threatens the life of George's reckless father, the Marquess turns to the Bentons again. To identify the source of the threat, Cass will have to impersonate Northbrook's scandalous cousin and infiltrate the very heart of London's high society. Working side by side day after day, Cassandra and George can no longer deny their mutual attraction. But they only have to let their guard down for a moment, and the deadly danger will destroy everyone.…