The Syndicate (The Mafia Chronicles‪)‬

Mafia hit man James Broderick had to break into a fiercely defended old Irish castle to kill C. Alex Ritter, a neo-fascist who made Hitler look like a choir boy. First Broderick had to get rid of Ritter’s stooges, then a beautiful redhead who almost made him forget his mission. The Mob figured Ritter was set to ruin its organization and that Broderick was the only man big enough and tough enough to kill him before he could.