The Shadows Series Novels

Ravishing His Wicked Lady (The Shadows 4) by Sadie Bosque
Curse of the Wicked Scoundrel (The Shadows 3) by Sadie Bosque
Secrets of the Wicked Viscount (The Shadows 2) by Sadie Bosque
A Return of the Wicked Earl (The Shadows 1) by Sadie Bosque