Thus the penalties of the law, the contempt of neighbors, and the espionage of persons interested in returning fugitives to bondage made secrecy necessary in the service of the Underground Railroad. Night was the only time, of course, in which the fugitive and his helpers could feel themselves even partially secure. Probably most slaves that started for Canada had learned to know the north star, and to many of these superstitious persons its light seemed the enduring witness of the divine interest in their deliverance. When clouds obscured the stars they had recourse, perhaps, to such bits of homely knowledge as, that in forests the trunks of trees are commonly moss-grown on their north sides. In Kentucky and western Virginia many fugitives were guided to free soil by the tributaries of the Ohio; while in central and eastern Virginia the ranges of the Appalachian chain marked the direction to be taken. After reaching the initial station of some line of Underground Road the fugitive found himself provided with such accommodations for rest and refreshment as circumstances would allow; and after an interval of a day or more he was conveyed, usually in the night, to the house of the next friend. Sometimes, however, when a guide was thought to be unnecessary the fugitive was sent on foot to the next station, full and minute instructions for finding it having been given him. The faltering step, and the light, uncertain rapping of the fugitive at the door, was quickly recognized by the family within, and the stranger was admitted with a welcome at once sincere and subdued. There was a suppressed stir in the house while the fire was building and food preparing; and after the hunger and chill of the wayfarer had been dispelled, he was provided with a bed in some out-of-the-way part of the house, or under the hay in the barn loft, according to the degree of danger. Often a household was awakened to find a company of five or more negroes at the door. The arrival of such a company was sometimes announced beforehand by special messenger. That the amount of time taken from the hours of sleep by underground service was no small item may be seen from the following record covering the last half of August, 1843. The record or memorandum is that of Mr. David Putnam, Jr., of Point Harmar, Ohio, and is given with all the abbreviations: Aug. 13/43 Sunday Morn. 2 o'clock arrived Sunday Eve. 8-1/2 " departed for B. 16 Wednesday Morn. 2 " arrived 20 Sunday eve. 10 " departed for N. Wife & children 21 Monday morn. 2 " arrived from B. Monday eve. 10 " left for Mr. H. 22 Tuesday eve. 11 " left for W. A. L. & S. J. 28 Monday morn. 1 " arrived left 2 o'clock.[128]