Agony of a Witch.Lilith makes another attempt at capturing Eda, but is thwarted by Hooty. Luz discovers that Eda's curse has been worsening, requiring increasingly more elixir to restrain. At school, Luz learns that they are taking a field trip to the Emperor's castle. She decides to go after learning the castle holds powerful magic relics, including a healing hat that might be able to cure Eda. While on the tour, Luz sneaks off, seeing Lilith being threatened by Emperor Belos with banishment from the Emperor's Coven if she fails to capture Eda. Willow and Gus learn of Luz's plan and help her break into the relics room...