Underboss by Kristen Proby

As the eldest son of Seattle’s current mob boss, Carmine Martinelli’s life has never really been his own. But he doesn’t mind because his family means more to him than his life. Which is why he’s determined to make those responsible for the death of his aunt and uncle pay—in inventive and gruesome ways. And what better way to do that than to infiltrate the Russian mafia from the inside? It’s a good thing the bratva’s princess is stunning and seemingly willing to do whatever he asks. This vengeance could be the perfect mix of business and pleasure.

Nadia Tarenkov has several things stacked against her: she’s a woman, and she’s not the eldest child in her family. But it doesn’t matter. She has her sights set on ruling the syndicate, and she always gets what she wants. When the heir to one of the States’ most powerful crime families comes knocking, Nadia sees it for the gift it is. He thinks he has her fooled, but she’s smarter, more cunning, and always two steps ahead. She’ll beat the gorgeous mobster at his own game, and secure her place in the fold.

What neither of them takes into consideration, however, is that they aren’t the only ones with deadly plans in motion. To survive, they’ll have to come clean and work together—and acknowledge that the growing love they’ve been pretending isn’t there, is very real.