Jules Verne,
In Search of the Castaways; or Captain Grant's Children…
(1911)
“ Loud snores in every tune and key soon resounded from all sides of the hut, the deep bass contribution of Paganel completing the harmony.But Glenarvan could not sleep. Secret uneasiness kept him in a continual state of wakefulness. His thoughts reverted involuntarily to those frightened animals flying in one common direction, impelled by one common terror. They could not be pursued by wild beasts, for at such an elevation there were almost none to be met with, and of hunters still fewer. What terror then could have driven them among the precipices of the Andes? ”
