The young scientist was delighted with Dr. Mackay and found in him a very interesting companion. They met in Kelung, and when Dr. Warburg found that Dr. Mackay was going to visit the Kap-tsu-lan plain, he joined his party. The stranger found many rare specimens of orchids on that trip and several peculiar spear and arrow heads to be taken back as curios to Germany. But he found something rarer and more wonderful and something for which he had not come to search. He saw in one place three hundred people gather about their missionary and raise a ringing hymn of praise to the God of heaven, of whom they had not so much as heard but a few short years before. He visited sixteen little chapels and heard clever, brightfaced young Chinese preachers stand up in them and tell the old, old story of Jesus and his love. And he realized that these things were far more wonderful than the rarest curios he could find in all Formosa. When he bade good-by to Dr. Mackay, he said: "I never saw anything like this before. If scientific skeptics had traveled with a missionary as I have and witnessed what I have witnessed on this plain, they would assume a different attitude toward the heralds of the cross." Not many months later Dr. Mackay again went down the eastern coast. This time he took three of his closest friends, all preacher students, Tan be, Sun-a, and Koa Kau. With a coolie to carry provisions, their Bibles, their forceps, and some malaria medicine, they started off fully equipped. By steam launch to Bang-kah, by a queer little railway train to Tsui-tng-kha and by foot to Kelung was the first part of the journey. The next part was a tramp over the mountains to Kap-tsu-lan. The road now grew rough and dangerous. Overhead hung loose rocks, huge enough to crush the whole party should they fall. Underneath were wet, slippery stones which might easily make one go sliding down into the chasm below. As usual on this trip they had many hairbreadth escapes, for there were savages too hiding up in the dense forest and waiting an opportunity to spring out upon the travelers. Dr. Mackay was almost caught in a small avalanche also. He leaped over a narrow stream-bed, and as he did so, he dislodged a loose mass of rock above him. It came down with a fearful crash, scattering the smaller pieces right upon his heels; but they passed all dangers safely and toward evening reached the shore where the great long Pacific billows rolled upon the sand. They were in the Kap-tsu-lan plain. Their journey through the plain was like a triumphal march. Wherever a chapel had been erected, there were converts to be examined; wherever there was no chapel, the people gathered about the missionary and pleaded for one. They often recalled the first visit of Kai Bok-su when "No room for barbarians" were the only words that met him.