seven o'clock
She slipped the packet into her pocket , put the heather back into its place , tried to give the disturbed earth the appearance of not having been disturbed at all , and went back to the house . She was so excited she could scarcely contain herself . The days were getting shorter . Tea was at half-past four , and a kind of light supper at seven o'clock . The girls of the lower school had this meal a little earlier . Sibyl was just in time for tea , which was always served in the great refectory ; and here the various members of the upper school were all assembled -- except the Specialities , who had tea in their own private room . `` Well , Sibyl , you are late ! ''