Madame Butterfly was still thinking about the people who had stopped her attack on Mr Gilbert.
"Are they the witches that Lady Avisha paid? Why did Lady Avisha dare to do that? Did she already know that the person behind Princess Darlene's disappearance was me?"_. Lady Butterfly went back to meditating, looking for the person who had attacked her. But after she meditated for so long, she was unable to detect that person's presence.
Madame Butterfly was busy in her meditation, so she didn't realize that currently the old palace was being attacked by a group of people.
Madame Butterfly was careless, she didn't build a magical fence to protect the old palace.
In the dark of night, a group of people dressed in black and wearing ghost masks infiltrated the palace. They defeated the elite palace guards. The palace guards who were caught off guard were easily subdued.