Mr. Isaacs by F. Marion Crawford

The hours came and went, and though worn out with the exertions of the past days, and with the emotions of the morning, I lay in my rooms, unable to sleep even for a moment. I went down once or twice to Isaacs' rooms to know whether he had returned, but he had not, nor had any one heard from him. At last the evening shadows crept stealthily up, darkening first one room, then another, until there was not light enough to read by. Then I dropped my book and went out to breathe the cold air on the verandah. Wearily the hours went by, and still there was no sign of my friend.

Towards eleven o'clock the moon, now waning, once more rose above the hills and shed her light across the lawn, splendid still, but with the first tinge of melancholy that clouds her departing glory. Exhausted nature asserted herself, and chilled to the bone I went to bed, and, at last, to sleep.