The wandering island was moving in a westerly direction, borne along by a current unmarked on the chart, and unknown to hydrographers, which was evidently carrying it towards Behring Strait. All the dangers foreseen by Hobson were then imminent, if Victoria Island did not again touch the mainland before the winter.
"But how far are we from the American continent? that is the most important point just at present," said Mrs Barnett.
Hobson took his compasses, and carefully measured the narrowest part of the sea between the coast and the seventieth parallel.
"We are actually more than two hundred and fifty miles from Point Barrow, the northernmost extremity of Russian America," he replied.
"We ought to know, then, how many miles the island has drifted since it left the mainland," said Sergeant Long.
"Seven hundred miles at least," replied Hobson, after having again consulted the chart.
"And at about what time do you suppose the drifting commenced?"
"Most likely towards the end of April; the ice-field broke up then, and the icebergs which escaped melting drew back to the north. We may, therefore, conclude that Victoria Island has been moving along with the current parallel with the coast at an average rate of ten miles a day."
"No very rapid pace after all!" exclaimed Mrs Barnett.
"Too fast, madam, when you think where we may be taken during the two months in which the sea will remain open in this part of the Arctic Ocean."