Transcription: While preparations for our journey began, my uncle explained what the mysterious message might mean. The whole of Iceland is composed of volcanoes, he told me. They all bear the name of Jökull, which is Icelandic for glacier, because the volcanic eruptions come from ice-bound caverns. But what, I asked, is meant by snaffles, said the professor. It's a mountain about 5,000 feet in height. One of the most remarkable in the whole island, and now certainly doomed to be the most celebrated in the world. For through its extinct crater we shall reach the centre of the earth." What about the burning l ...