Ask the Right Question by Michael Z. Lewin (ePUB+)

An Edgar Award Finalist: A teenager's search for her birth father sends Indianapolis PI Albert Samson on a quest that rattles the skeletons in an old-money family's closet
It's a slow afternoon for Indianapolis private detective Albert Samson. He's just awoken from an office doze when a new client walks in. Sixteen-year-old Eloise Crystal recently discovered that her blood type doesn't match either of her parents', and she wants Samson to find her biological father.

Skeptical, but one hundred dollars richer, Samson begins some preliminary digging. What he unearths is the kind of dirt that makes people do desperate things—and it thrusts him into a shifting world of lies, deceit, and murderous secrets.