“Still at it, then?” said he to Holmes. “I thought you Londoners were never at fault. You don’t seem to be so very quick, after all.”
“Ah, you must give us a little time,” said Holmes good-humoredly.
“You’ll want it,” said young Alec Cunningham. “Why, I don’t see that we have any clue at all.”
“There’s only one,” answered the Inspector. “We thought that if we could only find—Good heavens, Mr. Holmes! What is the matter?”
My poor friend’s face had suddenly assumed the most dreadful expression. His eyes rolled upwards, his features writhed in agony, and with a suppressed groan he dropped on his face upon the ground. Horrified at the suddenness and severity of the attack, we carried him into the kitchen, where he lay back in a large chair, and breathed heavily for some minutes. Finally, with a shamefaced apology for his weakness, he rose once more.
“Watson would tell you that I have only just recovered from a severe illness,” he explained. “I am liable to these sudden nervous attacks.”
“Shall I send you home in my trap?” asked old Cunningham.
“Well, since I am here, there is one point on which I should like to feel sure. We can very easily verify it.”
“What was it?”
“Well, it seems to me that it is just possible that the arrival of this poor fellow William was not before, but after, the entrance of the burglar into the house. You appear to take it for granted that, although the door was forced, the robber never got in.”