There’s a moment in the Outlander season three premiere, just before Claire goes into labor with Brianna, when Frank gets up in the middle of the night to write to Reverend Wakefield. He asks the reverend to look into Claire’s story, specifically the identity of this “Jamie” from hundreds of years ago. Frank writes:
I find myself in need of your assistance once more. I hope that you’ll indulge me in undertaking some research regarding an 18th-century Highlander who fought in the Battle of Culloden. His name was James Fraser.
That’s as far as Frank gets in composing his letter before Claire interrupts him to tell him that her water has broken, which means it’s time to go to the hospital. In the next scene, Claire is in the throes of labor, the letter all but forgotten. If you’re a fan of Diana Gabaldon’s book series, however, this scene may have rung some bells.
I asked executive producer Maril Davis about this letter and the infamous headstone, so read on to find out how the show intends to deal with that aspect of the book . . . but be warned of light book spoilers!
In the book Drums of Autumn, Roger reveals that he has found a letter written from Frank to the reverend, referencing another, long-ago letter in which Frank asks Reverend Wakefield to place a gravestone with Jamie’s name on it near Black Jack Randall’s gravestone in St. Kilda’s churchyard, which the reverend does. Frank’s reasoning for this is that he thinks Claire will someday take Brianna to Scotland and Brianna might go looking for the grave of her ancestor Black Jack Randall. Jamie’s gravestone would perhaps spur Claire to tell Brianna about Jamie (which it does, in Dragonfly in Amber). Unfortunately, the gravestone also leads Claire to believe she knows Jamie dies in Scotland, so she is fearful of his return there until she knows the truth.
Go through the 🗿stone🗿 to read more at the source: Why Outlander’s Writers Are Leaving This Important Book Element Out of the Show