The Perfect Bride - Love in Disguise, #1

In this Regency love triangle, spinster Amanda Fitzhugh thinks she is far too level-headed to fall for any man's seductive ways. She's content to chaperone her young cousin's come-out and betrothal to Simon Hannibal Thornton, one of England's most esteemed war heroes, now Lord Sommersby. But when the iron-willed earl with a haunted castle turns his soldierly skills from winning a bride to conquering her companion, Amanda discovers her own heart in mortal danger amid the ghosts of passion.