1.   As darkness falls, nocturnal creatures begin to make an appearance.

2.   As darkness falls, Hedija remembers this was the hour when the snipers would stop shooting and the shelling would intensify.

3.   As darkness falls, the great capitals of Asia and Europe hum with human vitality.

4.   By the time darkness falls, Quebecers will have decided whether to form their own country.

5.   Towering Kendrick Peak takes on a purple cast as darkness falls in the mountains.

6.   Unfortunately, watering at that time of day allows lawns and plants little time to dry before darkness falls.