six o'clock
She was desired to call them , and presently Fanny and Mary appeared at the window , -- twins of ten years old , and very pretty little girls . `` My dears , '' said Mrs Grey , `` has Miss Young done with you for to-day ? '' `` Oh yes , mamma . It is just six o'clock . We have been out of school this hour almost . '' `` Then come in , and make yourselves neat , and sit down with us . I should not wonder if the Miss Ibbotsons should be here now before you are ready .