Trace Evidence — Diane Capri

The child of billionaire tech CEO Veronica Beaumont is in desperate need of a bone marrow transplant. With his health rapidly declining, she hires Michael Flint, the heir hunter of last resort, to do the impossible: find Josh Hallman, the boy's father, to provide a hoped-for match. Six years ago, Hallman piloted a plane that crashed, claiming the lives of two friends. Hallman's body was never recovered, and he's been presumed dead ever since. But Flint is beginning to have doubts -- because he's not the only one looking to find Hallman. The difference is, Flint wants to make sure he's alive.

Now, in a race against time to save a child's life, the best heir hunter in the business is determined to find Hallman, if he's alive, before two relentless killers do. And when the Beaumont job uncovers new clues to a cold case that has haunted him his entire life, Flint finds himself wrestling with the toughest challenge of his career: Just because he can find someone, does that mean he should?