ten o'clock
` No , dear , it 's getting late ; we must go home . ' ` No , we need n't go home till we like -- nobody wants us . Mamma will be asleep over her knitting , -- how she does sleep ! -- and she 'll wake up surprised when we go home , and say , `` Gracious , is it ten o'clock ? These summer evenings are so short ! '' ' ` But you ought to be in bed , Vernie . ' ` No , I ought n't .