Is it really Castle service Barnaba

Is it really Castle service Barnabas is doing, we ask ourselves then; granted, he goes into the offices, but are the offices part of the real Castle?And even if there are offices actually in the Castle, are they the offices that Barnabas is allowed tO enter? He's admitted into certain rooms, but they re only a part of the whole, for there are barriers behind which there are more rooms. Not that he's actually forbidden to pass the barriers, but he can t very well push past them once he has met his superiors and been dismissed by them. Besides, everybody is watched there, at least so we believe. And even if he did push on further, what good would it be to him if he had no official duties to carry out and was a mere intruder? And you mustn’E imagine that these barriers are a definite dividing line; Barnabas is always impressing that on me. There are barriers even at the entrance to the rooms where he's admitted, so you see there are barriers he can pass, and they’re just the same as the ones he's never yet passed, which looks as if one ought not to suppose that behind the ultimate barriers the offices are any different from those Barnabas has already seen.18