Mark by Malikov Books in Order

Pregnant with Anton’s child, Mary lives under his protection while his enemies close in. Learning to survive inside the Bratva brings new strength, but their future depends on whether he chooses loyalty to his superior or the family they are forming.

After a drunken intrusion into the wrong apartment, Mary encounters dangerous Bratva enforcer Anton. Uncovering money laundering at work subsequently makes her a target, forcing her into his protection as dependence and fear become an increasingly intimate connection.