Outlander season 5: Claire Fraser's ally was based on a real life 'witch' – here's how

And, sure enough, the show eventually began accusing her of being a witch.

Because she was such a good friend to Claire, she eventually admitted to being a witch, absolving Claire of any accusations.

It is later revealed that Geillis has been killed off after giving birth to her child.

Just before she died, though, she sent a message to Claire, which read: “1968.”