six o'clock
it 's sure to come off , '' Helen exclaimed . `` Has the sherbet come , does anybody know ? '' Angela asked . `` They promised it by six o'clock , '' Dot Mead replied ; `` it 's surely here by now . '' `` It 's time for the curtain , '' Miss Crosby called , as she came down from the stage , where she had been putting the last finishing touches to the Venetian street . `` Are you ready ? '' Polly and Angela and Helen jumped up .