seven o'clock
With the other passengers of the `` Alaska , '' Tudor Brown had received and accepted an invitation from the prefect . They thought up to the last moment that he would go in his accustomed dress , for he had made his appearance in it just as they were all going ashore to the dinner . But doubtless the necessity of removing his precious hat appeared too hard to him , for they saw him no more that evening . When he returned after the ball , Erik learned from Mr. Hersebom that Tudor Brown had returned at seven o'clock and dined alone . After that , he had entered the captain 's room to consult a marine chart ; then he had returned to the town in the same small boat which had brought him on board . This was the last news which they received of him . The next evening at five o'clock Tudor Brown had not made his appearance .