Reunited, Jamie and Claire attempt to extinguish the fires their dinner party ignited; however, Claire is set off on an unexpected change of course. Jamie and Claire’s relationship is put to the ultimate test when the past rears its ugly head.
Suspecting that St. Germain was behind the attack on Mary, Claire testifies on Alex's behalf securing his freedom. Mary is over-joyed as, now that she is soiled goods, her arranged marriage will be cancelled and she can marry Alex. Aware that Mary and Jack Randall will wed and become her husband's ancestors Claire is unhappy at the news and, at a party at Versailles where the Duke of Sandringham expresses his contempt for Charles Stuart to Jamie, the reappearance of Jack Randall and a consequent arrangement between himself and Jamie adds to Claire's woes.
- "Untimely Resurrection" is the title of Chapter 21 in Dragonfly in Amber.
- The main inspiration for the Paris apartment came from the Carnavalet Museum — a museum set in an old mansion which features design and interior decor from the 16th, 17th, and 18th centuries.
- The Apostle Spoons: Ron said he wanted Jamie to give Claire a christening gift. The team researched traditional Gaelic christening gift for the 18th century and Dani Berrow, their historian, presented the idea of the Apostle spoons. The spoons ended up being much larger than anticipated, but worked out well for filming.
- Toni Graphia had written a dialogue exchange to the script, where Jamie says he plans to have a child for each spoon and Claire is shocked to learn that he wants to have 12 children. This of course did not make the final cut.
- The Palace of Versailles' Gardens and Stables: Both exteriors were actually filmed in Scotland. The formal gardens are located at Drummond Castle in Perthshire and the stables at Gosford House in East Lothian.
- King Louis XV's costume is an exact reproduction of a suit given to the real King Louis by the King of Sweden, though originally was given years later than the story line.
- In 1740s France, the gendarmerie was heavy cavalry in the military, not a civilian police force.