Sarah MacLean 
No Good Duke Goes Unpunished [EPUB ebook] 
The Third Rule of Scoundrels

A rogue ruined . . .He is the Killer Duke, accused of murdering Mara Lowe on the eve of her wedding. With no memory of that fateful night, Temple has reigned over the darkest of Londons corners for twelve years, wealthy and powerful, but beyond redemption. Until one night, Mara resurfaces, offering the one thing hes dreamed of . . . absolution.A lady returned . . .Mara planned never to return to the world from which shed run, but when her brother falls deep into debt at Temples exclusive casino, she has no choice but to offer Temple a trade that ends in her returning to society and proving to the world what only she knows…that he is no killer.A scandal revealed . . .Its a fine trade, until Temple realizes that the ladyand her pastare more than they seem. It will take every bit of his strength to resist the pull of this mysterious, maddening woman who seems willing to risk everything for honor . . . and to keep from putting himself on the line for love.