Sentence:  I would have spoken further, but before I could get under way the door opened, revealing Ma Cream, and [my manservant Jeeves<!--was "he"-->] shimmered silently from the room. Unless expressly desired to remain, he always shimmers off when what is called <WSD>the Quality</WSD> arrive. 
Meaning of the word marked with <WSD> tags:  The upper class, the high society, the gentry; the people of quality.