Diana and Matthew spend episode 6 at Sept-Tours proving themselves to Philippe. In a visually stunning episode, Philippe makes sure Diana understands what she’s getting into by exposing her to Matthew’s Blood Rage and seeks to understand the rift he senses between himself and Matthew. Once he’s satisfied that Diana is worthy of Matthew and that the two are equally devoted to each other, he approves of their relationship and encourages them to fully mate.
Matthew and Philippe argue about why Philippe allowed the witch Champiers to threaten Diana so that she had no choice but to kill him in episode 5. Philippe felt it was essential to test Diana’s ability to take care of herself, since she already knows so many of the family secrets. He won’t allow Matthew to bring a weak-willed
woman witch into the family who could compromise their safety at the slightest threat.
Once Diana gets involved in the argument, Philippe notices that she’s wearing the cherished ring he gave Ysabeau. Ysabeau wouldn’t part with the ring while he’s still living, which leads him to realize that he must be dead in the time they’ve come from. Matthew confirms his suspicion.