The Iliad by Homer Book 10 Page 12

a skin that reached his feet — and grasped his spear. When he had roused the heroes, he brought them back with him; they then went the round of those who were on guard, and found the captains not sleeping at their posts but wakeful and sitting with their arms about them. As sheep dogs that watch their flocks when they are yarded, and hear a wild beast coming through the mountain forest towards them — forthwith there is a hue and cry of dogs and men, and slumber is broken — even so was sleep chased from the eyes of the Achaeans as they kept the watches of the wicked night, for they turned constantly towards the plain whenever they heard any stir among the Trojans. The old man was glad and bade them be of good cheer. “Watch on, my children,” said he, “and let not sleep get hold upon you, lest our enemies triumph over us.”