midnight
At the present stage of the inquiry there are , as I take it , three discoveries to make , starting from that smear . Find out -LRB- first -RRB- whether there is any article of dress in this house with the smear of the paint on it . Find out -LRB- second -RRB- who that dress belongs to . Find out -LRB- third -RRB- how the person can account for having been in this room , and smeared the paint , between midnight and three in the morning . If the person ca n't satisfy you , you have n't far to look for the hand that has got the Diamond . I 'll work this by myself , if you please , and detain you no longer from your regular business in the town . You have got one of your men here , I see .