4.5 stars 
 Parker Black is the behind the scenes man at Titan. He knows where everyone is, where all their resources are, and how to take care of any situation that has to do with a computer. He is black and white, code, and data analysis. But when he finds himself attracted to his friend's fiance, he struggles with what is right and what is beyond his control. 
 Silver Chaos is both a celebrity and an enigma in the hacker world. One of the best, no one actually knows who or where Silver is. But Parker has used his expertise in coding and hacking many times over their careers. 
 Lexi Reynolds doesn't correct anyone when they assume Silver Chaos is a man. She is perfectly happy to keep her anonymity when it comes to her professional talents. But her shaky personal relationship and a professional threat cause her to begin questioning everything she knew about who she was and what she does. 
 As their worlds collide and the truth comes out, both must decide what they are willing to sacrifice and what is worth the fight. 
 I cannot imagine a more perfect match for Parker than Lexi. She's smart, a tech-savvy hacker, and they even share some similarities in their backgrounds. I loved these two together, and loved watching Parker figure out what Mia meant when she told him it was ok to color outside the lines. 
 Parts of this story were absolutely page-turning, edge of my seat action, but others were a less threatening form of action. This makes sense as Parker and Lexi are both very much on the tech side of ops and hacking, and it is hard to make sitting in coffee shops waiting for online deals to happen overly exciting. I think for what the story was, it was a great way to take care of the characters and move the story along. 
 This was more than a simple Titan mission. Lexi also had some bad history that had to be dealt with. Her thought processes echo those of others who live in the same situations, but that doesn't make it any easier to read. I wished I could just give her a hug, or some confidence at several points in order to help her along. 
 Black Dawn may not have bumped my favorite Titan books out of their spots, but it is a solid story with great characters and made for a great escape. I have loved Parker for a long time, and didn't like watching his feelings as he watched all his partners find their women while he was left the odd man out. This was a great mix of hacker culture, Titan operating procedure, and the family behind the Titan group. 
 I was gifted a copy in exchange for an honest review.