Going Gone!

https://www.youtube.com/watch?v=DGI9MzkBkSE (Book Trailer)
Kerry Branson, ex-homicide detective turned private investigator, inadvertently rescues a six-year-old boy on a fog-laden backroad in the Piney Woods of East Texas.
When she discovers Tristan is the kidnapped son of a U. S. Senator, her call to the FBI is just the start, not the end of her problems. Dodging ruthless kidnappers who know her every move, she’s forced into an uneasy alliance with the agent assigned to the case, FBI Tracker Ryan Barr.
Protecting Tristan soon puts Kerry and Ryan in the middle of a plot that strikes at the heart of the government—the White House. The horrific plan has drug cartels and terrorist groups lined up to cash in.
There’s no backing down when they find their lives are on the line.