So, of course, we mustn't." The tone is that of gentle resignation.

It is instinct with the spirit of virtuous pride, arising from the consciousness of self-sacrifice.
"Don't you call this being up ?" you suggest.
"Oh, no; we're not really up, you know, because we're not properly dressed." The fact is self-evident.

"Pa's always very tired in the morning," the voice continues; "of course, that's because he works hard all day.

Are you ever tired in the morning ?" At this point he turns and notices, for the first time, that the three other children have also entered, and are sitting in a semi-circle on the floor.

From their attitude it is clear they have mistaken the whole thing for one of the slower forms of entertainment, some comic lecture or conjuring exhibition, and are waiting patiently for you to get out of bed and do something.