19 books • 4 series
Book #1: If the Duke Demands
Book #3: As the Devil Dares
Book #4: How The Earl Entices
Book #6: After the Spy Seduces
Book #1: The Duke and the Darkness
Book #2: The Duke of Deceit
Book #3: The Duke's Only Desire
Book #1: An Inconvenient Duke
Book #2: An Unexpected Earl
Book #3: An Extraordinary Lord
Book #6: A Problem Princess
Book #4: Once a Scoundrel