The night was murky, but neither Gu Yang nor Xu Ruomei noticed that on the roof, a pair of eyes had been watching them all along.
Only when Gu Yang had left for Qingxuan Sect did the figure descend to the yard, standing in front of the window, he glanced at Xu Ruomei inside the room, stroking his chin with a thoughtful look in his eyes.
This man was the sword slave by Xu Ruomei's side, and also her guardian in the ways of the Dao.
Even back at the Lin Family's residence, he had arrived when Gu Yang saved Xu Ruomei, but he had not revealed his presence.
He had followed them all the way here, hearing all their conversations, without showing any hint of appearing to the rescue.
Neither Gu Yang nor Xu Ruomei had noticed his presence.
The art that he used to conceal his presence was the secret art of the Sword Palace, the Hidden Sword Art, to prevent his discovery by others.
The old man was a guardian, not a nanny.
Only when Xu Ruomei's life was threatened would he take action.