Book 2 of the Tao books by Wesley Chu. This series has gotten some guff due to The Lives of Tao being written as a National Novel Writing Month project, and perhaps I was more invested having read the Io books first, but dammit I really like these books.
Also, knowing that there was a third book in the queue, the ending of this one was a big WHAAaaa? (but it was worth it in book 3) #scifi #reading #quasingwars