She needed a job. He needed a weapon. Ella Hart is broke, about to be evicted, and desperate enough to take a job with London's most ruthless corporate lawyer-even if Damien Cross is arrogant, infuriating, and looks at her like she's a problem he's already solved. He wants her to dig up dirt on people. Destroy careers. Help him win at any cost. She should hate him. She does hate him. But hate and want have a way of blurring together when you're working late nights in glass towers, trading insults that feel like foreplay, and pretending you don't notice the way he watches you like you're the only thing he can't control. Damien Cross doesn't do relationships. He does transactions. Ella doesn't do billionaires. She has principles. Too bad principles don't pay rent. And too bad Damien is very, very good at getting what he wants. Ruthless is a steamy enemies-to-lovers billionaire romance with a morally gray hero, a heroine who gives as good as she gets, and enough tension to combust. Book one in the Saints & Sins series. HEA guaranteed.