Loving her would be his downfall... To society, the Earl of Blackstone cuts a mysterious figure. He is eligible, withdrawn, and endlessly fascinating. Yet as an integral part of London's underground spy ring intent on defeating Napoleon, Blackstone has no mistress but the cause. Miss Emily Mirren is considered "unbiddable" by the ton. She wields a fierce intellect, which she channels into her own secret cause-writing an abolitionist newspaper column...