As for what was in the opposite direction of the castle, they couldn't see it at the moment, so they couldn't figure it out.
In fact, Chloe felt that they should first think of a way to protect themselves and then wait for rescue. Therefore, Chloe collected some necessities from those people and made two bags of artificial blood...
"Although this isn't real blood, it's man-made blood with a similar color and texture, it should be enough to deceive people. It's similar to the blood used by those actors when they are acting." The materials were limited. Chloe only made two bags, and she gave one of them to Yara. "You hide it on your body, and you should be able to use it when necessary."
Fortunately, this castle was very old and had a long history, so it was unrealistic for each room to be equipped with security cameras.
Otherwise, the other party would definitely find out that she was making these things.