The inspector rose. "I am a police officer, madam," said he. "I can't give you any further information just now, but, if you will excuse me asking, who are you?"
"I am Mr. Hickler's housekeeper," she replied.
"And Mr. Hickler; are you expecting him home shortly?"
"No, I am not," was the curt reply. "Mr. Hickler is away from home just now. He left this evening by the boat train."
"For Amsterdam?" asked Thorndyke.
"I believe so, though I don't see what business it is of yours," the housekeeper answered.
"I thought he might, perhaps, be a diamond broker or merchant," said Thorndyke. "A good many of them travel by that train."
"So he is," said the woman, "at least, he has something to do with diamonds."
"Ah. Well, we must be going, Jervis," said Thorndyke, "we have finished here, and we have to find an hotel or inn. Can I have a word with you, inspector?"
The officer, now entirely humble and reverent, followed us out into the garden to receive Thorndyke's parting advice.
"You had better take possession of the house at once, and get rid of the housekeeper. Nothing must be removed. Preserve those cinders and see that the rubbish-heap is not disturbed, and, above
