ten o'clock
`` And then '' -- with a puzzled expression -- `` how am I to know how broad to make the hems ? '' She feared to go on with the work without special directions , for she might make some mistake . But after considering the matter , she determined to leave the sheets altogether and do the over-and-over sewing on the pillow-slips , until she could ascertain Mrs. Montague 's wishes . Mona was naturally quick in all her movements , and , being also very persevering , she had accomplished considerable by ten o'clock , when Mrs. Montague , in an elegant morning _ negligée _ of light-blue cashmere , and looking as lovely as an houri , strolled languidly into the sewing-room to see what her new seamstress was about . `` Oh , you are sewing up the slips , '' she remarked , as she nodded in reply to Mona 's polite good morning and observed her employment . `` I forgot to tell you about the hems last night , and I have been afraid ever since I awoke this morning that you would not make them broad enough . '' `` Yes , I feared I might make some mistake , so left them , '' Mona answered , but without stopping her work .