His progress was simply astonishing, as was also Mackay's. The two seemed possessed with the spirit of hard work. But a superstitious old man who lived near believed they were possessed with a demon. He often listened to the two singing, drilling, and repeating words as they marched up and down, either in the house or in front of it, and he became alarmed. He was a kindly old fellow, and, though a heathen, felt well disposed toward the missionary and A Hoa. So one day, very much afraid, he slipped over to the little house with two small cups of strong tea. He came to the door and proffered them with a polite bow. He hoped they might prove soothing to the disturbed nerves of the patients, he said. He suggested, also, that a visit to the nearest temple might help them. The two affected ones received his advice politely, but the humor of it struck them both, and when their visitor was gone they laughed so hard the tea nearly choked them. The missionary was soon able to speak so fluently that he preached almost every day, either in the little house by the river, or on the street in some open square. There were other things he did, too. On every side he saw great suffering from disease. The chief malady was the terrible malaria, and the native doctors with their ridiculous remedies only made the poor sufferers worse. Mackay had studied medicine for a short time while in college, and now found his knowledge very useful. He gave some simple remedies to several victims of malaria which proved effective. The news of the cures spread far and wide. The barbarian was kind, he had a good heart, the people declared. Many more came to him for medicine, and day by day the circle of his friends grew. And wherever he went, curing disease, teaching, or preaching, A Hoa went with him, and shared with him the taunts of their heathen enemies. But the gospel was gradually making its way. Not long after A Hoa's conversion a second man confessed Christ. He had previously disturbed the meetings by throwing stones into the doorway whenever he passed. But his sister was cured of malaria by the missionary's medicine, and soon both sister and mother became Christians, and finally the stone-thrower himself. And so, gradually, the lines of the enemy were falling back, and at every sign of retreat the little army of two advanced. A little army? No! For was there not the whole host of heaven moving with them? And Mackay was learning that his boyish dreams of glory were truly to be fulfilled. He had wanted always to be a soldier like his grandfather, and fight a great Waterloo, and here he was right in the midst of the battle with the victory and the glory sure.