The boat went into a tunnel and there are completely darkness all around. The boat flung sideways and hit something which make them slide aside. Finally Doon light a candle then they found this tunnel had an arched ceiling like pipeworks but it was much wider, the river ran through it like a moving road.
灰蒙蒙的早晨
Doon 和 Lina 解开缆绳，船立刻流进一个隧道，就像一个张开的大嘴，里面一点亮光也没有，船不停地撞击左右墙壁，后来Doon 终于翻出蜡烛点燃，在微弱的光线下，他们发现这里是个很宽大的隧道，河就像一条路通向不知道的地方。