Lord of Darkness: Number 5 in series by Elizabeth Hoyt
He lives in the shadows. As the mysterious masked avenger known as the Ghost of St Giles, Godric St John's only goal is to protect the innocent of London. Until the night he confronts a fearless young lady pointing a pistol at his head - and realises she is his wife . . .
Lady Margaret Reading has vowed to kill the Ghost of St Giles - the man who murdered her one true love. Returning to London, and to the man she hasn't seen since their wedding day, Margaret does not recognise the man behind the mask. Fierce, commanding and dangerous, the notorious Ghost of St Giles is everything she feared he would be - and so much more . . .
When passion flares, these two intimate strangers can't keep from revealing more of themselves than they had ever planned. But when Margaret learns the truth - that the Ghost is her husband - the game is up and the players must surrender . . . to the temptation that could destroy them both.