X. OUTSIDE THE LAW Such was the letter addressed to the government of the United States. As to the person who had placed it in the mail-box of the police, no one had seen him. The sidewalk in front of our offices had probably not been once vacant during the entire night. From sunset to sunrise, there had always been people, busy, anxious, or curious, passing before our door. It is true, however, that even then, the bearer of the letter might easily have slipped by unseen and dropped the letter in the box. The night had been so dark,