Ah Wu was as crafty as a fox. All his life he had been connected with the opium business; and an opium den is a place where a Chinese may gain a very intimate knowledge of his fellow-men. He learns much in connection with human character. Whatever may have been the feelings of Frank Armitage and Yung How, the proprietor of the opium den had not the least doubt that in agreeing to follow Ling they had taken the wisest course.
During the few hours that elapsed between the departure of the brigand and sunset, they were given a further opportunity of observing the singular abilities of this inhuman monster. There is no doubt that the man might have succeeded in almost any walk of life. His plans were not only elaborate, and so carefully laid that they allowed for almost every possible contingency, but they were made rapidly without a moment's hesitation.
In the course of the afternoon Ah Wu's three attendants arrived, gaining entrance into the opium den by means of the back door. These were sent upon various errands, from which they could not possibly return until after dark. As soon as Ling himself had conveyed the mortal remains of the unfortunate Men-Ching from the opium den, the place was to be open, customers were to be admitted. These customers were to be entertained by Yung How until Ah Wu himself returned. The establishment was to remain open, day and night, throughout the next few days. Ling made no secret of his intention to decoy Cheong-Chau to the opium den, where he was to be drugged, whilst Ling gained possession of the ransom, which by that time should have arrived from Hong-Kong.
About the middle of the afternoon Ling went out, and was absent about twenty minutes. This in itself is sufficient proof of the self-confidence of the man. It was within the power of Ah Wu, Yung How, or the youth who had called himself "Ah Li," to betray him. These three were left alone in the opium den with the horrid evidence of Ling's guilt.
During his absence, Ling posted his letters. The night boat left Canton at eight o'clock, and Ling himself took the letters on board. He returned to the opium den, and was admitted at the back door by Ah Wu himself. He did not seem in the least curious as to whether they had been discussing him whilst he was away.
Soon after nightfall, Ling and Ah Wu departed on their gruesome errand, taking with them the body of Men-Ching. This they secreted under the hood of a double ricksha, and Ah Wu, much to his dismay, was made to seat himself beside a lifeless companion. As for Ling, he stripped himself to the waist, coiled his pigtail round the top of his head, after the manner of a coolie, and himself drew the ricksha through the dark, narrow streets of the great city. Frank and Yung How stood at the small back door of the opium den when Ling took his departure. They heard the wheels rattling over the cobble-stones of the streets, and then the ricksha disappeared in the darkness, and with it that which had formerly been Men-Ching, Cheong-Chau's second-in-command.
Yung How and Frank returned to the main room, where they lighted the lamps, and shortly afterwards the three attendants returned. The establishment was then opened, and it was not long before customers began to arrive. Most of these were regular patrons of Ah Wu's, who knew how to look after themselves. Having ordered what they wanted, they disposed themselves on couches in the lower room. There they smoked opium, drank samshu, and nodded off to sleep.
Frank regarded Yung How. The man lay upon a couch; his arms were folded; he was staring blankly in front of him, thinking possibly of Ling and how that villain had placed himself between Yung How and a fortune. For there could be little doubt that, under the original arrangement, Yung How was to be treated handsomely, and the man attached little or no value to Ling's promise. It does not necessarily follow that one rogue will trust another.
Frank, as he looked at the man, was busy with his thoughts. Two things were evident to him: first, that Yung How had not recognised him and that he was now scarcely likely to do so; second, that he might be persuaded to operate against Ling--provided he could do so without great personal risk.
Now in order not to overestimate the boldness of the step which Frank Armitage then and there proposed to take, it is necessary to realise that the boy could see no other way out of his difficulties, to remember that not only his own life but the lives of Mr Waldron and his uncle depended upon his success, and to remember also that he stood in no fear of Yung How, whom he had known since he was a child.