Brutal Loyalty by Bella Ash

A lamb enters the lion’s den…

Elena Popov has a mission: kill Viktor Sokolov. But standing between her and her target is the ruthless Roman Garnovich. And if Viktor doesn’t die soon, Elena’s father will have her head.
Pretending to defect to a rival family, Elena soon finds herself torn between loyalty and her growing hatred of her evil father. And then there’s Roman and his tests, looking for weaknesses and vulnerabilities so he can break her down.
Roman has always been suspicious of Elena. Her beauty may captivate others, but not him. He knows she wants to harm the Sokolov family, but his years as an enforcer have taught him how to harm, too.
And Elena will feel his wrath.