"They haven't contacted anyone the few days but they must have used some kind of coded communication to pass information. Or they communicate through magic. They might indeed be involved. Or it was another group with the same goal," Alwin decided to check on everyone.
His pride was hit to have failed to consider all the possibilities so he was ready to investigate without the need for orders from Ferdinand or Arabella.
Alwin then gathered everyone. He found that the ten kitchen staff and Bert were under a hypnosis spell so simple it was almost not noticeable.
It was a simple suggestion that barely needed any mana to be activated. That they simply ignore Risa's presence and just get about their tasks but remember that Risa was there that day once someone asks about her.
It was why the staff did not think it was weird that someone who was not part of the kitchen staff was there. But when asked about Risa, they recalled seeing her and admitted to it.