Mysterious stranger who follows and assists the expedition. He saves Glauben from a bog, reveals himself as a fellow scientist, guides them to a hidden city and cloning laboratory, explains the relativity of time, and uses a mysterious box to trigger an explosion that floods the grotto, allowing the group's escape.
They are independent scientists pursuing related subterranean research.
Olsen reveals that he is a fellow scientist on a mission to explore the underground world, while the Professor is conducting the same kind of investig...
Olsen expands Axel's understanding of the underground world and guides the expedition toward its revelations.
Olsen assists the expedition, reveals the hidden city to Axel and the group, and explains that time is relative rather than absolute.
Olsen becomes a vital ally to Hans during the underground escape.
Olsen assists the same expedition that includes Hans and helps the group escape the flooded grotto.
Explore the full interactive character relationship map of Journey to the Centre of the Earth