one o'clock
`` Pauline , '' she said , `` I am going to the White Bay with the Carvers -- those two children there -- that boy and girl ; you see 'em . We are going at once . They have got a basket of cakes , and we are going to gather shells and have a jolly time . We wo n't be back till one o'clock . '' `` But you ca n't go , '' said Pauline . She did not know of any danger in going ; she only thought that Penelope meant to disobey Miss Tredgold . `` Aunt Sophy is out , and she has not given you leave , '' she said .