four o'clock
`` And the Carletons will have an early dinner , '' put in Mrs. Bob . `` Oh , I forgot . You do n't know about that either . Mrs. Carleton wo n't be back from the country until four o'clock , so she asked me to give you the invitation to have New Year 's dinner with them . '' `` But did she know there were six of us ? '' asked Betty anxiously , whereupon everybody laughed and Mrs. Bob assured her that Mrs. Carleton had mentioned seven to her , and had n't seemed in the least worried . That was the way things went all through their visit .