There was a hamlet on the northern side of the hill, and a hundred poor were fed every day by the monks of Derry. Once during a thunderstorm some of the wretched little houses caught tire. The people hastened to Columba, who went at once to the church. There with outstretched arms he poured forth his soul in supplication before the altar, and the fire ceased at his prayer. A fragment of the rule in use amongst the old Celtic monasteries has been preserved, in which we can see the spirit of the monks of Columba's time: "Yield submission to every rule--that is devotion. "A mind prepared for red martyrdom--that is death for the faith. "A mind fortified and steadfast for white martyrdom--that is the trials and mortifications and crosses of earthly life. "Forgiveness from the heart to everyone. "Constant prayers for those who trouble thee. "Love God with all thy heart and all thy strength, and love thy neighbour as thyself." Strong and simple, like the saints of the time, to whom the "red martyrdom" might come at any moment, and to whose fiery natures the forgiveness of injuries was not always the easiest of precepts. But Derry, with its oak grove and its angels, was not the only spot that was dear to Columba. Foremost in his affections amongst the other religious houses of his founding was Durrow--in Irish Dair-nagh, or the plain of oaks. It was also known as Druin-Cain, or "the beautiful hill," and well did it deserve its name. The land, as was the case with so many of the old monasteries, had been given to Columba by a reigning prince, probably a kinsman of his own. Of Durrow the story is told that there was in the orchard of the monastery an apple tree noted for the abundance as well as the bitterness of its fruit. But Columbcille blessed the tree, and thenceforward, says the old chronicle, its apples became sweet and good. While Columba was at Durrow he wrote the celebrated copy of the Gospels known as the "Book of Durrow." An ardent lover of the Sacred Scriptures, and a skilful and patient scribe, he is said to have written with his own hand no less than thirty copies of the Gospels and the Psalter. The "Book of Durrow" is a transcription of the four Gospels, exquisitely illuminated with the intricate designs of the Celtic school. On the back is to be deciphered a petition for prayers from "Columba the scribe, who wrote this evangel in the space of twelve days." The poet-saint could sing the charms of Durrow as well as those of Derry: There the wind sings through the oaks and the elms, The joyous note of the blackbird is heard at dawn, The cuckoo chants from tree to tree in that noble land. And again he calls it: A city devout with its hundred crosses, Without blemish and without transgression. In the years to come, when Columba was in Iona, one cold winter's day the brethren noticed that their beloved abbot was sad and silent. "What ails you, Father?" asked Diarmaid, his faithful companion.