When a Bratva war explodes inside Prague’s most secure bank, Oliva Bevans makes one catastrophic mistake—
She saves the wrong man.
By morning, the meticulous banking executive who built her life on control is trapped in a deadly underworld of blood debts, stolen fortunes, and ruthless power plays. Because the man she dragged out of the gunfire isn’t just dangerous.
He’s Mikhail Volkov.
Bratva captain. Underworld strategist. And the only thing standing between her and the men who want her dead.
Now hidden inside her luxury apartment while the city hunts them both, Elara is forced into an impossible bargain: use her brilliant financial mind to help Mikhail recover a fortune in stolen bearer bonds… or become collateral damage in a brutal mafia war.
But the closer she gets to the cold, calculating Russian, the more dangerous the real threat becomes.
Because Mikhail doesn’t just want her expertise.
He wants her surrender.
And beneath his icy control lies a possessive darkness that awakens desires Elara has spent her entire life burying. Every glance burns. Every touch destroys another piece of the woman she used to be. In Mikhail’s world, obsession is power, trust is a weapon, and once a Volkov claims something—
He never lets it go.
As enemies close in and betrayal stalks the shadows of Prague, Elara must decide how much of her soul she’s willing to trade for survival… and whether the most dangerous vault she’s ever opened is the one inside herself.
A Vault of Sin is a dark Bratva romance featuring high heat, dangerous obsession, forced proximity, morally gray characters, and a possessive antihero. Perfect for readers who love dark mafia romance with cinematic tension and addictive chemistry.
