nine o'clock on Friday mornings
That would be splendid , and then she would see our opinion of her . '' `` Every girl must vow she wo n't say it , even you , Patty ! '' `` I think you 're very silly , '' said Patty , `` but I sha n't be there myself . I always have my music lesson at nine o'clock on Friday mornings . '' `` So much the better , '' said Enid . `` You were the only one I thought might spoil it . Will everybody else promise ? ''