Nemesis is the 10th book in the Orphan X series from Gregg Hurwitz.

"Evan finds out that Tommy, his gunsmith and armorer and possibly his best friend in the world, has violated one of his commandments by providing weapons to an enemy - someone willing to hurt innocents. When Evan shows up to confront Tommy, he is attacked by mercenaries. Tommy has headed out to keep a promise to an old war buddy. It all comes to a head in an abandoned ghost town."

One thing unusual about this Orohan X story is that we get Tommy's POV for the first time. And we get a little of Joey's POV. There are several storylines going on here and Hurwitz does a good job not getting lost and tying them together at the end. The scene at Tommy's shop is another one of those Orphan X action scenes that Hurwitz does so well - X is continuously backed into a corner but figures a way.
Evan has continued to grow and change because of the people around him. It keeps the character fresh without feeling like it's just the same plot everytime.
Not the ending I would have wished for but the characters' fates belong to Hurwitz.

Scott Brick is the perfect voice for Evan Smoak and does a great job with the audio.

Another great Orphan X story.