His Delightful Lady Delia (American Royalty)

After years of being her diva mother's understudy, it's time for Delia Vittoria to take her place on stage. Attempting to make amends for a grave mistake, Kit Quincy is suddenly pulled into Delia's plot to win the great opera war and act as her patron and an enigmatic phantom. But when a second phantom appears, more than Delia's career is threatened.