‘Not at all,’ said Father Brown, quietly. ‘It is my duty to visit prisoners and all miserable men in captivity.’ There was a silence, and the young man frowned with a strange and almost shifty look on his lean face. Then he said, abruptly: ‘Well, you’ve got to remember it isn’t only common crooks or the Black Hand that’s against him. This Daniel Doom is pretty much like the devil. Look how he dropped Trant in his own gardens and Horder outside his house, and got away with it.’ The top floor of the mansion, inside the enormously thick walls, consisted of two rooms; an outer room which they entered, and an inner room that was the great millionaire’s sanctum. They entered the outer room just as two other visitors were coming out of the inner one. One was hailed by Peter Wain as his uncle—a