The English at the North Pole by Jules Verne

Hatteras would not inform his crew of their situation, for if they had known that they had been dragged farther north they would very likely have given themselves up to the madness of despair. The captain had hidden his own emotions at his discovery. It was his first happy moment during the long months passed in struggling with the elements. He was a hundred and fifty miles farther north, scarcely eight degrees from the Pole! But he hid his delight so profoundly that even the doctor did not suspect it; he wondered at seeing an unwonted brilliancy in the captain's eyes; but that was all, and he never once thought of the reason.

The _Forward_, by getting nearer the Pole, had got farther away from the coal repository observed by Sir Edward Belcher; instead of one hundred, it lay at two hundred and fifty miles farther south. However, after a short discussion about it between Hatteras and Clawbonny, the journey was persisted in. If Belcher had written the truth -- and there was no reason for doubting his veracity -- they should find things exactly in the same state as he had left them, for no new expedition had gone to these extreme continents since 1853. There were few or no Esquimaux to be met with in that latitude. They could not be disappointed on the coast of New Cornwall as they had been on Beechey Island. The low temperature preserves the objects abandoned to its influence for any length of time. All probabilities were therefore in favour of this excursion across the ice. It was calculated that the expedition would take, at the most, forty days, and Johnson's preparations were made in consequence.