“My friend,” I said, “do not answer unless you feel free to explain,—but I wonder that you, a relative of the Emperor, should be compelled to start your travels in this secret manner.”

“Shogun, not Emperor,” he corrected. “Law over Shogun, too. I travel naibun—incognito. Shimadzu Satsuma-no-kami my friend. I teach Raugaku—the Dutch learning,—war ways, history, engineering. No man know real me at Kagoshima. Daimio of Satsuma gone Yedo. I steal aboard. No man know. Shogunate no punish daimio, my friend.”

“They would punish even the Prince of Satsuma if they found you had escaped from his province?”

My guest nodded. “Very old law.”

“Yet you would leave the country at the risk of death?”

His smile deepened into a look of solemn joy. I give his broken Dutch a fair translation.

“My soul is in the eyes of Woroto Sama. There is trust between us. I speak without concealment. The tojin peoples of the west have dealt harshly with the Chinese. The black ships have destroyed many forts and bombarded great cities. I fear the black ships may come to devastate Dai Nippon; yet my people know even less of your people than did the Chinese. The Dutch of Deshima warn us to heed the demands of the tojin to open our ports. The officials in control of the Shogunate shut their ears.”

My lip curled. “The English are a nation of shopkeepers, and our Yankees are no less keen for bargains. They will never rest until they have found a market for their wares in every country on earth. If they cannot get into your ports peacefully, sooner or later they will break in by force.”

“Such, then, is the truth,” he murmured. “Namu Amida Butsu! I ask only that I may live to bring back to Dai Nippon a clear report of the power and ways of the tojin peoples.”

“Nothing could please them more,” I replied. “Count on me to help you fulfil your noble mission!”