midnight
said Hilda , rather ashamed . `` I hope it is n't ten o'clock . '' `` I could ask , '' said Hilda hesitatingly . The hour , for aught she knew , was nine , eleven , or even midnight . She was oblivious of time . `` I 'll run , '' said Janet , preparing to go . `` I shall tell Charlie I 've seen you , next time I write to him .