House Of Cards The Negotiator Series, Book 2.

New York City's only legal counsel to the fabled Old Races, Margrit Knight is levelheaded in all matters extraordinary. But when she's summoned to negotiate a peace treaty among rival factions, her own mortal world threatens to fall apart. Margrit's been in hot water before, but reentering the underworld brings a new set of problems. And a new set of friends and enemies, including a ruthless vampire mobster, a dragonlord who won't take no for an...