Elixir
It's already night time and Rebecca finished eating dinner a few hours ago.
She's still wide awake.
Her favorite place in the new room is the window.
It helps alleviate her somber mood. Seeing the wide world outside helps her reinforce her belief that somehow she can escape this place.
From where she stood, she can see the towering trees surrounding the mansion. There are also mountains a few miles away.
Her suspicion was correct that the mansion was situated far away from the town, far away from humans. But she also knew that there are vampires who prefer to live with humans and hide their true identities.
She and Graven encountered a group of vampires who manage to discover and create an elixir that they ingest once a week making them immune to the sun's brightness and they can walk leisurely in the daylight without getting a sun burn.