midnight
There 's hope yet . He 'd have kept it if he had wanted us to come . Run down , my dear fellow , and open the door , for all virtuous folk have been long in bed . '' When the light of the hall lamp fell upon our midnight visitor , I had no difficulty in recognizing him . It was young Stanley Hopkins , a promising detective , in whose career Holmes had several times shown a very practical interest . `` Is he in ? '' he asked , eagerly .