Davis and Evelynn returned to their room once Emperor Ashton left.
Their meeting was not made known to the others and his parents were not privy to it since they were cultivating in peace.
Unless the maid and the others who came in contact with the black-robed person, purposefully informed the emperor and empress of this event, it will remain unknown.
Davis felt it wasn't wise to reveal this matter without a reason.
A princess of an Empire missing is enough to cause the Empire to fall into chaos. Although it would not affect the Loret Empire, it would incite the Ashton Empire.
For the same reason, Emperor Louis Ashton approached him in incognito. There were mostly two reasons for his passiveness.
One was his current strength, the other was probably his mysterious master. Emperor Louis Ashton understands well that he couldn't hope to defeat Davis even in the case if the latter had really kept Shirley in a dungeon, abusing her.
