When the team doubled back to this cave, the idea had been to relax for a whole day. After a heavy dinner, most of the team was knocked out cold and could scare a monster away with their snores. However, Driola didn't feel the same way.
Relaxation was ultimately boring to her, so she decided to use this freetime to the fullest. From the Promonus Ruins which she had lived in, she had managed to snatch a scroll right before they escaped.
She hadn't managed to read the scroll properly ever since, but its use was profound. It was dedicated to pure necromancy!
Although she recalled that the knowledge in this thing was limited, due to pure necromancy's rarity itself, she still decided to have a look. Last time, Driola had read this scroll when she was twelve years old, so obviously it wasn't easy to recall its contents thoroughly.