Cross Your Heart and Hope to Die. The Blackbird Sisters, #4

Updated and wittier than ever, this romantic mystery series features plenty of hot-blooded bluebloods misbehaving. That's definitely the Blackbird Sisters, although Nora, the sister who got stuck with the family estate when their parents blew the country for a tax-evader's paradise, is the responsible one. Her new job requires Nora to hit gala parties every night while dressed to the nines-a trick she manages thanks to her beloved Grandmama's collection of haute couture. But clothes don't always make the woman.
Certainly not when her boss, Kitty Keough, the wicked witch of high society, is executed by someone whose motive might have been furthering Nora's newspaper career. Police believe the killer isn't a bad boy from Nora's past, or the suspicious inventor of a fashion breakthrough in women's lingerie. Or even a gay blade who will stop at nothing to inherit an international sheep conglomerate. Bad news?  Mobster Mick Abruzzo's name keeps popping up on the suspects list, so Nora must climb the heights of high society to uncover the inconvenient truth.or lose the man who's been making mayhem in her bed. It's fabulous fun in Philadelphia until somebody dies a disastrous death. "Quite possibly the best cozy mystery series in publication-there is never a dull moment." --Fresh Fiction