"I don't think so." "What were you doing over in this part of town?" "Walking up to see the skaters on the park lagoon. But what's that get to do with it? You'd better be out looking for the thief instead of wasting time on me here," snarled Droom. The officer gasped and there is no telling what might have happened, if the captain and a swarm of bluecoats had not appeared on the scene at that moment. Two minutes later they were off scouring the lake front in search of the mysterious hold-up man. Two plain-clothes men remained to question the witnesses and to inspect the neighbourhood in which the crime was committed. Word came from the inner room that Mrs. Cable was regaining consciousness. "Does--can she throw any light on the affair?" asked Elias Droom. "She has uttered no word except her husband's name. I think she is still calling upon him for help, poor thing," said the young woman who bore the news. "Cable ought to be notified," said one of the men. "Don't do it over the 'phone," said Droom quickly. "I'm going past his house. I'll stop in and tell him. Let me out, officer; I must get out of these wet garments. I'm an old man, you know." The probable solution had come to Droom like a flash. As he hurried up the street his mind was full of the theory. He scarcely could wait for the door of David Cable's house to be opened in response to his vigorous ringing. The maid announced that Mr. and Mrs. Cable were out. It was enough for Droom. He put the puzzle together in that instant. David Cable's face was the one he had seen; not James Bansemer's. The maid set up a hysterical shrieking when he bluntly told her of the mishap to her mistress, but he did not wait to answer questions. He was off to find James Bansemer. The volcano he had been watching so long was about to burst, and he knew it. Forgetting his wet garments, he entered a drug store and telephoned to Bansemer's home. His employer answered the call so readily that Droom knew he had not been far from the instrument that evening. There was a note of disappointment in his voice when Droom's hoarse tones replied to his polite: "Hello!" "I'll be over in half an hour," said Droom. "Very important business. Is Graydon there?" "He's just gone to Cable's. Someone telephoned for him a minute or so ago. What's wrong? Do you know?" "I'll be there in fifteen minutes," was all that Droom would say.