Read "Journey to the Centre of the Earth" by Jules Verne online for free on Textopian. Full text with search, annotations, highlights, and AI-powered reading aids.
It ought, one would have thought, to have been night, even in the sixty-fifth parallel of latitude; but still the nocturnal illumination did not surprise me. For in Iceland, during the months of June and July, the sun never sets.
The temperature, however, was very much lower than I expected. I was cold, but even that did not affect me so much as ravenous hunger.