Silver in the Blood — Jessica Day George

As debutantes in 1890s New York City, cousins Dacia and Lou knew little about their mysterious Romanian relatives, the Florescus. Now, upon turning seventeen, the girls must journey to Romania--a journey that seems to be both reward and punishment--to meet their cousins and their tyrant of a grandmother and to learn the secrets of their family. Secrets spoken of in whispers. Dangerous secrets known as the Claw, the Wing, and the Smoke.

But as dangerous as those family secrets might be, even more dangerous is the centuries-old bond between the Florescus and the royal Dracula family, and it seems that it's time for Dacia and Lou to give up their life in New York society and take their place among the servants of the Draculas. When the devilish heir, Mihai Dracula, sets his sights on Dacia as part of his evil, power-hungry plan, the girls must accept or fight against this cruel inheritance. Do they have the courage to break the shackles of their upbringing and set the course of their own destiny?