ten o'clock
But I want to cry now , 'cause I do n't like to be lost , '' explained Rob , struggling with sleep , emotion , and a mouthful of bread and milk . The boys set up such a laugh at this funny way of making up for lost time , that Rob stopped to look at them , and the merriment was so infectious , that after a surprised stare he burst out into a merry , `` Ha , ha ! '' and beat his spoon upon the table as if he enjoyed the joke immensely . `` It is ten o'clock ; into bed , every man of you , '' said Mr. Bhaer , looking at his watch . `` And , thank Heaven ! there will be no empty ones to-night , '' added Mrs. Bhaer , watching , with full eyes , Robby going up in his father 's arms , and Nan escorted by Daisy and Demi , who considered her the most interesting heroine of their collection . `` Poor Aunt Jo is so tired she ought to be carried up herself , '' said gentle Franz , putting his arm round her as she paused at the stair-foot , looking quite exhausted by her fright and long walk .