4. The Intruder

Complete story — includes the ending

King tries to teach Luz about demons, but when a boiling rainstorm rolls in, Luz takes the opportunity to make Eda teach her some magic. Though unsure if humans are capable of performing magic, Eda tries showing Luz how to create light, only to pass out from exhaustion. King tells Luz that Eda keeps a bottle of elixir in her room, believing it can give her magic. Before she drinks it, a monstrous demon breaks into the house and begins stalking Luz and King. The two discover that the elixir was to prevent a curse from taking hold of Eda, who is the monster chasing them. While hiding from the transformed Eda, Luz learns to create light by drawing specialized glyphs. Using her newly learned light spell, and King's knowledge of demons, the two manage to stun Eda and give her the elixir, turning her back to normal. Eda explains that she was cursed when she was younger, and it causes her to occasionally transform into an "owl beast", hence her nickname "The Owl Lady". Later, Eda has a brief nightmare of the figure who cursed her but cannot recall who it is.