Our protagonist is Axel, whose overcautious and unadventurous spirit contrasts with that of his uncle Professor Otto Lidenbrock, an eccentric professor of geology. When Professor Lidenbrock obtains a mysterious runic-coded note in the manuscript of an Icelandic saga, he is determined to decipher it. Axel inadvertently solves the code and, much to his chagrin, discovers that it is a set of directions left by a sixteenth-century Icelandic alchemist to reach the center of the earth via the volcano Snæfelljökull. Reluctantly, Axel joins his uncle on a trip to Iceland, and with the aid of a local guide, Hans, begins an adventure towards the center of the earth, where they will encounter giant mushrooms and insects, an island with an enormous geyser, and battle pre-historic reptiles. One of Verne’s most well-known works, this novel is a testament to Verne’s love of geology, science, and cryptography.