Alone with the Hairy Ainu

I have often asked myself why I went to Yezo; and, when there, what possessed me to undertake the laborious task of going round the island, up its largest rivers, travelling through jungles and round lakes, climbing its highest peaks, and then proceeding to the Kuriles. There are certain things in one's life that cannot be accounted for, and the journey which I am going to relate is one of them.