The Hunchback of Notre Dame by Book 9 Chapter 4 Page 16

The officer did not come forth. When the last passers-by had returned home, when the windows of all the other houses were extinguished, Quasimodo was left entirely alone, entirely in the dark.

There were at that time no lamps in the square before Notre-Dame.

Meanwhile, the windows of the Gondelaurier mansion remained lighted, even after midnight. Quasimodo, motionless and attentive, beheld a throng of lively, dancing shadows pass athwart the many-colored painted panes. Had he not been deaf, he would have heard more and more distinctly, in proportion as the noise of sleeping Paris died away, a sound of feasting, laughter, and music in the Gondelaurier mansion.

Towards one o’clock in the morning, the guests began to take their leave.