Stephanie Laurens 
Mastered By Love 

The men of the Bastion Club proved their bravery secretly fighting for their country. Now their leader faces that most dangerous mission of all: finding a bride.As the mysterious leader of the Bastion Club known as "Dalziel, " Royce Varisey, tenth Duke of Wolverstone, served his country for decades, facing dangers untold. But as the holder of one of England’s most august noble titles, he must now take on that gravest duty of all: marriage.Yet the young ladies the grand dames would have him consider are predictably boring. Far more tempting is his castle’s willful and determinedly aloof chatelaine, Minerva Chesterton. Beneath her serene faade lies a woman of smoldering sensuality, one who will fill his days with comfort and his nights with sheer pleasure. Determined to claim her, he embarks on a seduction to prove his mastery over every inch of her body . . . and every piece of her heart.