As the final season of Outlander enters its last few episodes, “Evidence of Things Not Seen” really turns up the heat… with a devastating outcome for the Fraser clan.

Jamie starts the episode with a tour of King’s Mountain to see if the details in Frank Randall’s book about the upcoming battle site are accurate… and they are. But Jamie’s possible impending death is placed on the back burner (mind the phrase) for the rest of the episode.

In Savannah, Fergus is teaching his sons Germaine and Henri-Christian how to use the printing press. Henri-Christian says he doesn’t want to disappoint his father since he’s different, as he has dwarfism. But Fergus shows his prosthetic hand and says there’s nothing wrong with being different, adding that Henri-Christian may be small, but he’ll do great things. He says Fergus Fraser & Sons will be theirs one day and that, “La plume est notre épée” — “The pen is our sword, and we can never lay it down.” What a good dad that Fergus is.

William is back home at Lord John’s, where he confronts Amaranthus about Ralph Bleeker, aka Benjamin Grey. Despite knowing that her husband was alive, Amaranthus is a wriggly one and quickly gains his sympathy again. When she confesses to Lord John, LJG is a bit less sympathetic (well, he’s never experienced the benefits of some alone time in the gazebo with her). Amaranthus reacts harshly to Lord John’s judgment of her, saying she lied about being Ben’s widow to protect her son from going hungry. OK, if she was just trying to get by after her husband deceived her (and the British monarchy), maybe Amaranthus isn’t so bad after all? Jury’s still out.

Lord John warns William of getting too close to her. Wise words from a man who has been personally dealing with the repercussions of marrying a woman whose husband was still alive. But William is madder at Lord John keeping the truth about his paternity from him than he is at Amaranthus.

At the market, Marsali and Brianna discuss Fergus potentially being the son of Le Comte St. Germain. (Brianna and Roger are still in Savannah until they obtain the guns for the Ridge from Marion.) Despite the money it would offer them, Fergus doesn’t want to be a pawn in Percy Beauchamp’s game. A man then attacks Marsali with a tomato and calls her a “rebel bitch” for what Fergus prints. That’s not the end of the threats, as Fergus later finds a note pinned to their door with the words, “Lady bird, lady bird, fly away home, Your house is on fire, and your children are gone.” Marsali says she won’t let idle threats scare their family away. Fergus wants to extend their family by making love, and there’s a rare Marsali and Fergus sex scene — well, at least the start of a sex scene. These two seem so happy… so why does all this domestic bliss come with a feeling of dread?

OUTLANDER 807 Marsali and Fergus sex scene

Also getting frisky is Lord John when Percy stops by his house. Percy says Captain Richardson is making his way to Savannah, and Lord John has a secret plot to deal with him. The once-stepbrothers and lovers reminisce and end up making out — but they’re interrupted by William. Upon seeing this, William assumes that Lord John and Jamie were lovers back in Ardsmuir, and that’s why Lord John agreed to care for William, hurling hateful words at LJG. Lord John says he and Jamie were just friends and that both of William’s fathers had sacrificed a lot to protect him. But William, as petulant as ever, declares, “I don’t have a father!” before storming out.

As for another one of Jamie’s offspring, there’s a big clue in the mystery of Claire and Jamie’s daughter, Faith. When Fanny loses Jane’s lace made by their grand-mère in Paris, Jamie remembers a lacemaker across from Master Raymond’s apothecary. (Fittingly, OG Outlander writer Toni Graphia wrote this episode, as well as Season 2’s “Faith.”) Claire wonders if Mother Hildegarde had named their daughter Faith to inspire her to have faith, but she admits she’s being challenged, especially with the possibility of Jamie’s death.

Thanks to Ian, they get some solid intel about their daughter, where no faith is required. Rather conveniently (even unbelievably conveniently), when Jane spoke to a reporter while she was imprisoned before her death, she revealed her family history. Her mother was abandoned by Master Raymond at the lace merchant’s and told to find Lady Broch Tuarach if he didn’t return. The lacemaker tried to track the lady at a wine merchant (Jamie’s cousin Jared, whose home they had stayed at in Paris), but she had already left the country. Years later, Faith learned her biological mother was living in the mountains of North Carolina, and the Pocock family had been coming to find Claire when they were attacked while sailing to America.

OUTLANDER 807 Claire saying, "Faith was coming to find us."

At Fergus and Marsali’s, fire breaks out. Marsali takes their daughters, Joan and Félicité, to safety outside, but the boys are up on the roof, so Fergus goes to rescue his sons. Fergus uses a pulley system to lower Germain and Henri-Christian to safety. But Henri-Christian loses his grip and plummets. Thankfully, Roger, freshly back from meeting with Marion’s men, gets there in time to catch and save Henri-Christian (a departure from the books by Diana Gabaldon). But before audiences can breathe a sigh of relief, the fire overcomes the roof, and Fergus falls to his death. Miles away at Fraser’s Ridge, Jamie wakes in his sleep knowing something is wrong.

OUTLANDER 807 Fergus falling and Marsali screaming

The family relocates to Lord John’s to process this horrible loss, where Brianna reveals to Roger she’s pregnant with their third child. Brianna comforts Marsali and promises she’ll watch over her children as she sleeps. The next day, a resilient Henri-Christian quotes his father about rising every day to bring the news to the world. Brianna suggests that Marsali should take Percy’s offer and have Germain become heir to the Comte’s estate. But for now, Marsali just wants to take her husband home and bury him.

With the confirmation that Faith was their daughter, Jamie and Claire tell Fanny that they’re her grandparents. They provide all the evidence, like Broch Tuarach is the alternate name for Jamie’s family home, Lallybroch, and that the song Fanny had sung in Season 7 finale, “I Do Like to Be Beside the Seaside,” was a song that Claire’s mom sang to her (as referenced in the prequel series Blood of My Blood) and Claire sang to Faith. Fanny needs some time to process this bombshell, and Claire thinks she’s run away. But Jamie and Claire find her at the cairn for Jane. She reveals she’s sad because she loses everything and now that they’re her family, she’s worried she’ll lose them too. Jamie asks her to have (you guessed it…) faith in them.

One touching family moment becomes a heartbreaking one when Brianna, Roger, Marsali, and her kids return to Fraser’s Ridge, and Claire and Jamie discover that Fergus has died. Harkening back to earlier days of Outlander, Claire gives a voiceover about their grief with flashbacks of Fergus in Paris, Scotland, and his wedding to Marsali. Fanny finds Jamie crying over Fergus’ casket and leads him to a cairn she built for him and calls Jamie “Grandda.”

If you were still skeptical that Fanny is their grandchild, Outlander uses the final moments of the episode to close the loop on how infant Faith could have possibly retained “I Do Like to Be Beside the Seaside.” A flashback to Paris 1744 shows Master Raymond (Dominique Pinon reprising his role yet again) requesting the lacemaker Jeanne Louvière take the baby since her father is in prison and her mother is sick. Master Raymond teaches the 18th-century woman the lyrics to the 20th-century song as their voices sing over the credits.

OUTLANDER 807 Master Raymond teaching the lacemaker lyrics

Though the Fraser family lost Fergus (au revoir, César Domboy!), fans may take some solace in the fact that they’ve officially gained another grandchild in Fanny, as well as one on the way with Brianna’s child. But this loss shows that the final season of Outlander isn’t holding back on major character deaths.