She mopped his bloodstained marble floors for three years. Then one night, his dyingsister needed the one surgeon only she could be.Ava Sinclair was once the youngest cardiac surgeon Chicago had ever seen. At twenty-six, she developed a heart procedure that bore her name. But when her own father bledout on her operating table, she walked away from surgery for good, took on a newidentity, and got a job mopping floors at the estate of Dante Moretti, the most fearedmafia don in Chicago.Three years passed. Then a bullet meant for Dante struck his nineteen-year-old sisterinstead. Three surgeons refused to operate on the shrapnel lodged in her heart. The familydoctor declared her beyond saving. But on that fateful night, a quiet maid carrying acoffee pot studied the scans and saw exactly what no one else could.Dante locked her in his study, pressed a gun to her head, and demanded the truth. Whathe uncovered changed everything: the gunmen who killed her father had been targetinghim. Her father had taken two bullets meant for Dante and Ava. The woman he'd paid toclean his floors was the daughter who had once saved his life.Now, Chicago's coldest don sleeps on the floor outside her door, breaks his own family'srules to protect her, and builds her a cardiac institute where she can finally practice as Dr.Sinclair again. The maid who once knelt on his marble floors has become the woman he'dburn the world down to protect.One side of the family sees a traitor. The only side that matters sees a surgeon, a daughter,and the woman he loves. So who's going to decide?