Written in My Own Heart's Blood by Diana Gabaldon

Written in My Own Heart’s Blood is the eighth book in Diana Gabaldon’s Outlander series. The story continues during the American Revolution, with Jamie returning from presumed death and reuniting with Claire. As battles rage, they navigate danger, shifting loyalties, and personal turmoil. In the 20th century, Brianna and Roger search for their missing son. Past and present intertwine as the Fraser family's courage and love are tested across time.