The danger of desire

"To root out the card cheat responsible for her brother's death, Miss Delia Trevor spends her evenings dancing her way through high society balls, and her late nights disguised as a young man gambling her way through London's gaming hells. Then one night, handsome Warren Corry, the Marquess of Knightford, a notorious member of St. George's Club, recognizes her. When he threatens to reveal her secret, she's determined to keep him from ruining her...