One for my Enemy - Olivie Blake

In New York City, two rival witch families fight for the upper hand. The Antonova sisters are beautiful, cunning and ruthless. But their underground narcotics business is threatened by their long-standing adversaries, the Fedorov brothers. For twelve years, the families have maintained a fraught stalemate. Then everything is thrown into disarray. Bad blood carries them to the brink of disaster, even as a forbidden romance blossoms between two opposing sides. Yet the heirs still struggle for power, and internal conflicts could rot each family from within. That is, if the enmity between empires doesn't destroy both sides first . . .