Birthright _ Nora Roberts

On a hot July afternoon, a worker at an Antietam Creek construction site drives the blade of his backhoe into a layer of soil — and strikes a 5,000-year-old human skull. The discovery draws plenty of attention and a lot of controversy. It also changes the life of one woman in ways she never expected...
As an archaeologist, Callie Dunbrook knows a lot about the past. But her own past is about to be called into question. Recruited for her expertise on the Antietam Creek dig, she encounters danger — as a cloud of death and misfortune hangs over the project, and rumors fly that the site is cursed. She finds a passion that feels equally dangerous, as she joins forces in her work with her irritating, but irresistible, ex-husband, Jake. And when a strange woman approaches her, claiming to know a secret about Callie’s privileged Boston childhood, some startling and unsettling questions are raised about her very identity.