eleven o'clock
The reply was frigidly given : `` Miss Do-little , '' with emphasis , `` you are supposed to dust the books , not read them ; and what 's more , that particular book is the rarest one in the whole collection . There 's a mate to it somewhere , and when Mr. Queerwitz finds it , he can sell the two of them to Mr. Leonel Van Loon for one thousand dollars in cool cash . '' Roberta was properly impressed , and replaced the book ; then , taking a duster , she proceeded to tidy her department . At eleven o'clock Bobs wondered if she ought to wander about the shop and watch the occasional customer . This she did , and was soon in the neighborhood of Miss Wiggin . `` You 're to go out to eat when I do , '' Nell told her . `` I 'm glad to hear it , '' was the reply .