This composition was based on the world-famous novel by the French author Jules Verne. This novel describes the attempt to reach the centre of the earth. The descent of the crater of the volcano called Snaeffels, situated in Iceland, marks thebeginning of this voyage to the sublunary world.
The German geologist, professor Lidenbrock, is accompanied on this trip by his nephew Axel and an Icelandic guide named Hans. The last mentioned will be helpful in many occasions.

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