I have been on a thriller kick lately and when I heard about Zero Sum Game I was instantly intrigued. The main character is a math genius that does retrievals. She is about as bad a&& as you can get. I listened to this on audiobook, it is about a ten-hour book that I could not put down. I finished it in a day and a half. 

 

There is a lot of action and a lot of morally gray characters. There are also a lot of unanswered questions. I am still a bit annoyed that some of the questions are unanswered, but in the I want to read the next book way. 

 

There is a bit of a science-fiction edge to this book, making me enjoy it that much more. However, it is a bit too much to be believable. Ultimately, it doesn’t matter because I was engaged from beginning to end.