Bishop's Flight

The sins of the past will burn you.
Four nights. Three days. The human son of two powerful vampires has been taken from his home. If Carwyn and Brigid can't find him, the delicate balance of power in an immortal haven might go up in flames.
Las Vegas holds a unique appeal in the immortal world. It's a city of darkness, debauchery, and vice, where inhibitions are low and blood runs hot. Rose Di Marco and Agnes Wong have been the city's immortal bosses for nearly a century, but when their son is kidnapped, they turn to their neighbors for help.
Carwyn and Brigid know how to find the lost, but they don't know why Zasha Sokholov, a Siberian fire vampire and offshoot of an old crime family, became fixated on them. Carwyn has suspicions, but all Brigid can think about is a fifteen-year-old boy who's been taken as bait. She'll need a clear head and the help of some unexpected allies to succeed.
Bishop's Flight is the fourth book in the Elemental Covenant series by Elizabeth Hunter, ten-time USA Today Bestselling author of the Irin Chronicles and the Elemental Mysteries.
"We may try to run from our past, but it finds us. We can put continents-even millennia-between us, but in the end, the sins of the fathers will come back to visit."