"I will. Let me see--this is Friday. Well, until this morning's fatal sleep, I had not slept since Sunday night. Monday was passed in the usual routine of military duty. Monday evening I was sent on a reconnoitering expedition to the old castellated Spanish fort of the Casa de Mata, that occupied the whole night. On Tuesday morning I was selected to attend the messenger who went with the flag of truce into the city to carry our General's letter of expostulation to Santa Anna, which employed the whole day. On Tuesday night, without having had an hour's rest in the interval, I was put on guard. Wednesday morning I was sent with a party to escort an emigrant caravan across the marsh to the village of Churubusco. Wednesday afternoon you saw me on guard and I told you that I had not slept one hour for three days and nights." "Yes, you looked ill enough to be ordered on the sick list." "Yet, listen. Thoroughly exhausted as I was, on Wednesday night I was ordered to join a party to go on a secret reconnoitering expedition to the Molina-del-Rey. On Thursday morning I was sent out with another party on a foraging tour. On Thursday night I was sent in attendance upon the officer who carried despatches to General Quitman. On Friday morning I was set on guard between the hours of four and eight!" "Oh, heaven, what an infamous abuse of military authority!" exclaimed Herbert, indignantly. "Herbert, in my life I have sometimes suffered with hunger, cold and pain, and have some idea of what starving, freezing and torture may be, but among all the ills to which flesh is heir, I doubt if there is one so trying to the nerves and brain of man as enforced and long-continued vigilance, when all his failing nature sinks for want of sleep. Insanity and death must soon be the result." "Humph! Go on. Tell me about the manner of their finding you," said Herbert, scarcely able to repress his indignation.