ten o'clock
But the professor coolly acknowledged his faults , and the lawyer answered his most bitter reproaches by jokes . `` Why should I alter my play , when I win by playing badly , and you lose by following your correct rules ? '' he said to the doctor . They played until ten o'clock . Then Kajsa made the tea in a magnificent `` samovar , '' and served it with pretty gracefulness ; then she discreetly disappeared . Soon Dame Greta appeared , and , calling Erik , she conducted him to the apartment which had been prepared for him . It was a pretty little room , clean and well furnished , on the second floor .