"Anything about him that is different?" continued Crewe.
Police-Constable Flack looked at Crewe in some bewilderment. He was not a deductive expert, and, as he told his wife afterwards, he did not know what the detective was "driving at." He took another long look at Holymead, who was then within a few yards of the plantation on his way to the gates, and remarked, in a hesitating tone, as though to justify his failure:
"Well, you see, sir, when he was coming in it was the front view I saw, now I can only see his back."
But before he had finished speaking Crewe had left him and was following the K.C. Holymead had gone into the house without a walking-stick, and had reappeared carrying one on his arm. Crewe admired the cool audacity which had prompted Holymead to go into a house where a murder had been committed to recover his stick under the very eyes of the police, and he immediately formed the conclusion that the K.C. had come to the house to recover the stick for some urgent reason possibly not unconnected with the crime. And it was apparent that Holymead was a shrewd judge of human nature, Crewe reflected, for he calculated that the rareness of the quality of observation, even in those who, like Flack, were supposed to keep their eyes open, would permit him to do so unnoticed.
As Crewe went down the path he beckoned to the boy Joe, who at the moment was acting the part of a comic dentist binding a recalcitrant patient to a chair, using an immense old-fashioned straight-backed chair which stood in the hall, for his stage setting. Joe overtook his master as he entered the ornamental plantation in front of the house, and Crewe quickly whispered his instructions, as the retreating figure of the K.C. threaded the wood towards the gates.
"When I catch up level with him, Joe, you are to run into him accidentally from behind, and knock his stick off his arm, so that it falls near me. I will pick it up and return it to him. I must handle the stick—you understand? Do not wait to see how he takes it when you bump into him—get off round the corner at once and wait for me."
Crewe quickened his pace to overtake the man in front of him. He gave no glance backward at the boy, for he knew his instructions would be carried out faithfully and intelligently. He allowed Holymead to reach the big open gates, and turn from the gravelled carriage drive into the private street. Then he hurried after him and drew level with Holymead. As he did so there was a sound of running footsteps from behind, and then a shout. Joe had cleverly tripped and fallen heavily between the two men, bringing down Holymead in his fall. The K.C.'s stick flew off his arm and bounded half a dozen yards away. Crewe stepped forward quickly, secured the stick, glanced quickly at the monogram engraved on it, and held it out to Holymead, who was brushing the dust off his clothes with vexatious remarks about the clumsiness and impudence of street boys. For a moment he seemed to hesitate about taking the stick.
"I believe this is yours," said Crewe politely.
"Ah—yes. Thank you," said the K.C., giving him a keen suspicious glance.