C588 Two Borders

Ye Yan was also looking for traces of the girl in blue.

Standing in front of the small door on the right side of the castle, Ye Yan scratched his head in confusion, "I clearly saw her coming just now, the door didn't open, but why is she gone?"

Honestly speaking, Ye Yan was also very confused. Logically speaking, based on the terrain here, she shouldn't be running so fast