Our nights wore never cold, and they were always still, but for one remarkable exception. Regularly, about nine o’clock, a warm wind sprang up, and blew for ten minutes, or maybe a quarter of an hour, right down the canyon, fanning it well out, airing it as a mother airs the night nursery before the children sleep. As far as I could judge, in the clear darkness of the night, this wind was purely local: perhaps dependant on the configuration of the glen. At least, it was very welcome to the hot and weary squatters; and if we were not abed already, the springing up of this lilliputian valley-wind would often be our signal to retire.