Night had fallen and Rachel had stayed in the hospital late to round up a few things.
Mathias allowed her this freedom on the condition that she closed up after herself.
Rachel agreed to do so, the tension in the community was slowly rising and all it needed was one spark for everything to go to shit. She needed to make this place safe because this was the closest to civilization since the apocalypse began and she couldn't even begin to wonder what people who weren't so fortunate were going through.
This worried Rachel as she knew the consequences of losing control, she couldn't risk it.
However, Rachel had lied to Mathias about the person who leaked information or rather, who she suspected.
That was Josephine even though Mathias couldn't do anything about it.
Mathias knew he couldn't spook Josephine and trusted Rachel to keep an eye on her.