Most of us never get to test ourselves in combat. As a UH-1 Helicopter pilot flying in the jungle highlands of South Vietnam, Warrant Officer Jim Crigler and the men he flew with were tested daily. Coming of age in the late 1960s and early 1970s was challenging for most young men of that era. Throw in drugs, free love, draft notices, the Vietnam War and a country deeply divided, and you have one of the most important books of this genre. This true story is a raw, bold, introspective autobiography where the author openly wrestles with his personal moral dilemma to find meaning and purpose in his life. He calls it his "Mission of Honor."

When Senator Charles Jamison dies in an apparent accident in Afghanistan, some people grieve, some celebrate, and the federal investigation into his corruption begins a controlled shutdown.

But when Sean McCloskey, an Atlanta teenager, overhears conspirators saying Jamison was murdered, he neither rejoices nor mourns. He disappears.

Detective John Mason is assigned to find Sean, but no one has a clue -- not his mother, not his sister, not his friends -- until Sean begins calling home every day. His cell phone is only turned on for a few minutes at at time, but the location trace shows him calling from unpredictable, random places all over metro Atlanta and beyond.

But the police aren't the only people looking for Sean. Can Mason discover the link between Sean's disappearance and the dead senator's? Can he find Sean before the cabal? Will the conspiracy be unmasked? Will justice finally be served?

Barbara Penfield was a normal suburban housewife. She had a normal suburban family; they lived in a normal suburban house. She even took normal suburban antidepressants. The car crash that killed her was assumed a normal suburban tragedy.

But when the evidence made it plain Barbara had been lured from her home and her car had been tampered with, Detective John Mason could only draw one conclusion: Murder.

The greatest mystery was why anyone might want Barbara dead.

Mason finds her murderer, but only with help from an unexpected source.

"Unthinkable" is the inaugural book in the Mason & Penfield Mysteries.