about two in the morning
All of that day the struggle was a strenuous one , and when night came all were exhausted , and were ready to retire as soon as the meal was over . They were in the midst of the thickest forest , and up to this time all had retired , as they did on this occasion . The yaks were enclosed in a railing made of small trees , so as to protect them , and the two mattresses within the covered body made comfortable beds for all . Strange sounds occasionally disturbed them , but caused no particular alarm , until Angel began to grow restless , about two in the morning . George tried to quiet him , but he persisted in giving the alarm . Suddenly a howl and a shriek awoke the occupants of the wagon and as each arose he instinctively grasped a weapon . The sounds came from two animals , one of which was close by ; the other at a greater distance .