...
While invisible, Zerha hides under the tree while looking at the castle gate that hasn't opened yet since no one was entering and leaving. It's already dark and Momo will be mad at me for sure! Zerha thought nervously.
Zerha waits outside first. She chose to be invisible because she doesn't want the demon knights will saw her. She thought that what if after seeing her face, the knights will report to the King that someone not from the royal palace is entering the place? She thought that even though Momo was the captain of demon knights and was the one who let her in, she still needs to be cautious about everything.
A moment later, the demon guards open the gate when one demon knight is going to leave the castle. As the knight walks past the gate, Zerha quickly runs as fast as she could before they close the gate again.
Zerha let out a sigh of relief as she entered the castle without no one noticing her.