This is the box set of the Sean Kruger series, books 1 through 3.

The Fugitive's Trail: In the lobby of a prestigious Wall Street investment firm, one man is dead and another seriously injured. The man accused of the crime is now a fugitive. 

When the Director of the FBI personally orders Special Agent Sean Kruger to New York City to find the fugitive, Kruger questions the reason. Told to shut up and do his job, he starts looking into the case. What he finds is troubling. Eyewitness accounts seem contrived with little variance between individual testimonies. The more he hears, the more he feels someone is manipulating the story.

As the investigation unfolds, he discovers the only information known about the fugitive is a HR file from a former employer. Public records of the man do not exist.

The fugitive is a ghost. A ghost who has disappeared.

The Assassin's Trail: A serial killer is on the loose in the Washington, DC area. Two men are dead and the FBI has called in Profiler Special Agent Sean Kruger.

Now in the twilight of his career, Kruger and longtime girlfriend, Stephanie, have decided to marry. Tired of the bureaucracy and politics of the job, he wants no part of the investigation.

But when the assassin strikes close to home, it becomes personal....

The Imposter's Trail: Over the Indian Ocean a Malaysia Airline jumbo jet drops from radar. Three hundred twenty-seven souls disappear with it; a woman in Rockford, Illinois is brutally murdered. Unrelated news events? Retired FBI agent Sean Kruger doesn’t think so. He suspects it’s the work of serial killer Randolph Bishop.