The Underground Lady — J.C. Simmons

Twenty-five years ago, in the deep south, a small airplane mysteriously disappears in the dense piney woods of Mississippi. The pilot, a young widow named Hadley Welch, who owns and runs a worldwide privately held pharmaceutical company is the lone occupant. Now, her daughter, after receiving an anonymous tip about her mother's disappearance, hires Aviation Consultant, Jay Leicester, to investigate.

Agreeing only after learning that not only did the missing woman used to own the land where his cottage now sits, but that she took off from a grass runway now part of his farm and, may in fact, have crashed on his land.

Soon after making inquiries into the missing aircraft and pilot, Jay Leicester's life is threatened, his neighbor's are threatened, and the missing woman's daughter is threatened.

Jealously, revenge, and murder set in rural Mississippi with colorful characters, and deadly characters, all heading toward one climatic question: What happened to Hadley Welch and her airplane twenty-five years ago make this a must-read for any aficionado of the Mystery/Thriller genre.