THE EYE OF APOLLO
struggling like a giant in bonds. "Who are you, you cursed spy, to weave your spiders' webs round me, and peep and peer? Let me go."
"Shall I stop him?" asked Flambeau, bounding towards the exit, for Kalon had already thrown the door wide open.
"No; let him pass," said Father Brown, with a strange deep sigh that seemed to come from the depths of the universe. "Let Cain pass by, for he belongs to God."
There was a long-drawn silence in the room when he had left it, which was to Flambeau's fierce wits one long agony of interrogation. Miss Joan Stacey very coolly tidied up the papers on her desk.
"Father," said Flambeau at last, "it is my duty, not my curiosity only—it is my duty to find out, if I can, who committed the crime."
"Which crime?" asked Father Brown.
"The one we are dealing with, of course," replied his impatient friend.
"We are dealing with two crimes," said Brown, "crimes of very different weight—and by very different criminals."
Miss Joan Stacey, having collected and put away her papers, proceeded to lock up her drawer. Father Brown went on, noticing her as little as she noticed him.
"The two crimes," he observed, "were committed against the same weakness of the same
281
