Palace of Treason by Jason Matthews (2015) Scribner

Dominika, the red sparrow, after being returned to Russia, is placed under the worst possible member of counterintelligence.  She continues to work with the CIA.  When her boss tries to have her killed, twice, she survives, and provides information that gets the attention of Putin, to the blinding jealousy of her boss.  

Never Go Back by Lee Child (2013) Bantam 

Reacher goes to Washington - to see the Major who is running the 110th, but it turns out that something else is going on and Reacher finds himself and the Major under arrest

Mr. Mercedes by Stephen King (2014) Scribner

Bill Hodges, a retired detective is contacted by the mass murderer about his last case.  Only now, the killer plans on something much more elaborate and deadly.

Gabriel's Horn by Alex Archer (2008) Gold Eagle

Annja Creed is called to help on a dig for a rare artifact, one people are willing to kill for, even Roux - to get ahold of Gabriel's Horn and end the world

Frankenstein: Prodigal Son by Dean Koontz (2009) Del Rey 

Victor Frankenstein is still alive, 200 years later.  So is his first creation, who calls himself Deucalion, the son of Prometheus.  Frankenstein has never stopped creating artificial people, only now he has far more science available to use.

Hombre by Elmore Leonard (1961) Ballentine 

A man raised by the Apache is on his way with other locals when they are held-up by robbers for a corrupt Indian Agent's stolen money.