nine o'clock
You understand ? '' `` Yes , sir , '' replied Sebastian , `` I will see to the matter as you wish . '' Then Herr Sesemann returned to Clara , and begged her to have no more fear , as he would soon find out all about the ghost and put an end to it . Punctually at nine o'clock , after the children had gone to bed and Fraulein Rottenmeier had retired , the doctor arrived . He was a grey-haired man with a fresh face , and two bright , kindly eyes . He looked anxious as he walked in , but , on catching sight of his patient , burst out laughing and clapped him on the shoulder . `` Well , '' he said , `` you look pretty bad for a person that I am to sit up with all night . ''