Stephanie Laurens 
Lady Of His Own 
Number 3 in series

Impatient to find his bride-to-be yet appalled by the damsels of the ton, Charles St Austell seeks refuge in his castle – and discovers Lady Penelope Selborne walking the deserted corridors at midnight. Years ago they’d consummated their youthful passion one unforgettable afternoon. While the ardent interlude still haunts Charles, Penny vowed never again to be seduced by the dashing earl. But resisting a stronger, battle-hardened Charles proves difficult, and when a traitorous intrigue threatens them both, Penny discovers that her first love is her fated champion and protector – and will not rest until he has made her his own…