The Nowhere Man by Gregg Hurwitz is the 2nd book in the Evan Smoak series (available January 17, 2017).
Once known only by the designation “Orphan X,” Evan Smoak escaped the shadow world he was trained for and now uses his skills pro bono as a near-legendary figure dubbed “The Nowhere Man.” He’s part John Wick, part Nikita, part the Equalizer, and unless you’re the one who called that encrypted phone number on his business card—1-855-2-NOWHERE—you do not want to see Evan coming.
Hector noticed movement in the shadows and stood, revolver quickly in hand. For a time, it seemed, he kept rising.
Standing just past the semicircle of pushed-together desks, Evan looked up at him. A FUCK YOU tattoo on the front of Hector’s neck indicated that nuance was not the man’s strong suit.
Hector said, “I don’t know who you are or why you’re here, but I’m gonna give you five seconds to leave before I aerate your torso.” For emphasis he kicked one of the monitors off the desk, which went to pieces at Evan’s feet, sparking impressively.