There, looking upwards, they could see the roof.

It was a sort of cupola; the chains from which the lamps hung were fastened to the centre, but the rest of the roof was of glass, and through it the children saw the sky, already quite dark, and with innumerable stars dotting its surface.
"Come on, Cheri," said Jeanne; "I believe this stair leads out on to the roof of the house." So it did.

A door at the top opened as they ran up the last steps, and a familiar figure stepped out.
"Dudu!" exclaimed Jeanne, in a tone of some disappointment.
"Did you not expect to see me ?" said the raven.

"Why, I thought it would amuse you to come up here and see the stars." "So it will," said Hugh, anxious to make up for Jeanne's abruptness.
"But, you see, we thought--at least we hoped--we should find some new adventures up here, especially when the ball hopped down the stairs, all gold." "What did you expect ?" said Dudu, cocking his head.

"Fairies, I suppose, or enchanted princesses, or something of that kind.