Dark season 2, episode 3, Ghosts, follows some of Winden’s living ghosts across two time periods, 1954 and 1987. As a police officer, Egon has dealings with the missing who are still alive: Helge, Ulrich and Mikkel. He’s a dying man who is trying to solve a mystery while he still has time. Claudia, the white devil-witch, is trying to save her daughter and her father, and in doing so sacrifices her own life.
Death magic is powerful magic, which Adam, who orders Claudia’s death, surely knows. But I don’t think he understands the difference between taking another’s life in order to achieve the murderer’s goals and a willing sacrifice of one’s own life for the sake of love. There’s a reason Claudia remains above ground at the end of the episode and Adam is buried deep in the underworld.
Adam’s long-term accomplices, Helge and Noah, grow more conflicted about the time war. We learn that Agnes is Noah’s sister and has been on both sides of the war, most recently siding with Claudia. In Ghosts, Claudia asks for a huge favor From Agnes, which will surely take an emotional toll. Agnes is somewhat of a ghost herself, since she usually projects the Femme Fatale image and keeps her true self in hiding.