4. How does the narrator describe the private rooms of the Blakeney house?

From the text:

They consisted of bedroom, dressing and reception room, and at the extreme end of the landing, of a small study, which, when Sir Percy did not use it, was always kept locked. His own special and confidential valet, Frank, had charge of this room. No one was ever allowed to go inside. My lady had never cared to do so, and the other servants, had, of course, not dared to break this hard-and-fast rule.