In August, 1858, an orphan girl, Martha Pinnell, who had been for over twelve years under Mr. Muller's care, and for more than five years ill with consumption, fell asleep in Jesus. Before her death, she had, for two and a half years, known the Lord, and the change in her character and conduct had been remarkable. From an exceedingly disobedient and troublesome child with a pernicious influence, she had become both very docile and humble and most influential for good. In her unregenerate days she had declared that, if she should ever be converted, she would be "a thorough Christian," and so it proved. Her happiness in God, her study of His word, her deep knowledge of the Lord Jesus, her earnest passion for souls, seemed almost incredible in one so young and so recently turned to God. And Mr. Muller has preserved in the pages of his Journal four of the precious letters written by her to other inmates of the orphan houses.* * Narrative, III. 253-257. At times, and frequently, extensive revivals have been known among them when scores and hundreds have found the Lord. The year ending May 26, 1858 was especially notable for the unprecedented greatness and rapidity of the work which the Spirit of God had wrought, in such conversions. Within a few days and without any special apparent cause except the very peaceful death of a Christian orphan, Caroline Bailey, more than fifty of the one hundred and forty girls in Orphan House No. 1 were under conviction of sin, and the work spread into the other departments, till about sixty were shortly exercising faith. In July, 1859, again, in a school of one hundred and twenty girls more than half were brought under deep spiritual concern; and, after a year had passed, shewed the grace of continuance in a new life. In January and February, 1860, another mighty wave of Holy Spirit power swept over the institution. It began among little girls, from six to nine years old, then extended to the older girls, and then to the boys, until, inside of ten days, above two hundred were inquiring and in many instances found immediate peace. The young converts at once asked to hold prayer meetings among themselves, and were permitted; and not only so, but many began to labour and pray for others, and, out of the seven hundred orphans then in charge, some two hundred and sixty were shortly regarded as either converted or in a most hopeful state.