For forty-eight hours the fury of the tempest continued to increase. The wind roared in the narrow pass, and tore off the tops of the icebergs. Loud reports, repeated twenty times by the echoes, gave notice of the fall of avalanches, and Jaspar Hobson began to fear that his further progress would be barred by the masses of debris accumulated between the mountains. Other sounds mingled with these reports, which Lieutenant Hobson knew too well, and he did not disguise from Mrs Barnett that bears were prowling about the pass. But fortunately these terrible animals were too much occupied with their own concerns to discover the retreat of the travellers; neither the dogs nor the sledges, buried in the snow, attracted their attention, and they passed on without doing any harm. The last night, that of the 25th or 26th May, was even more terrible. So great was the fury of the hurricane that a general overthrow of icebergs appeared imminent. A fearful death would then have awaited the unfortunate travellers beneath the ruins of the broken masses. The blocks of ice cracked with an awful noise, and certain oscillations gave warning that breaches had been made threatening their solidity. However, no great crash occurred, the huge mountains remained intact, and towards the end of the night one of those sudden changes so frequent in the Arctic regions took place; the tempest ceased suddenly beneath the influence of intense cold, and with the first dawn of day peace was restored. CHAPTER VIII. THE GREAT BEAR LAKE. This sudden increase of cold was most fortunate. Even in temperate climes there are generally three or four bitter days in May; and they were most serviceable now in consolidating the freshly-fallen snow, and making it practicable for sledges. Lieutenant Hobson, therefore, lost no time in resuming his journey, urging on the dogs to their utmost speed. The route was, however, slightly changed. Instead of bearing due north, the expedition advanced towards the west, following, so to speak, the curve of the Arctic Circle. The Lieutenant was most anxious to reach Fort Confidence, built on the northern extremity of the Great Bear Lake. These few cold days were of the greatest service to him; he advanced rapidly, no obstacle was encountered, and his little troop arrived at the factory on the 30th May.