CHAPTER ONE

      Tang Dynasty China, 848 A.D.

      WU KAIFENG LOOKED over the property from the street. For years it had been abandoned, the remnants from a fire that had raged through the capital city of Changan. Parts of the damaged area had been rebuilt, but not this building. Apparently, the two-story structure had once been a teahouse, but now it was nothing more than a hollow shell located just beyond the edge of the bustling East Market. Undesirable.

      Yet he had passed by that same location every day for the past week. Where others saw only a ruin, Kaifeng saw something else. He saw possibilities. With his position as head constable, he was earning a humble, yet steady wage. Maybe it was time to stop wandering. The dark corners and alleyways of Changan hid so many secrets; they could hide him, as well.

      The market gong sounded the Hour of the Goat. The afternoon was upon him and it was time to return from his rounds. Kaifeng set a path through the East Market, but was stopped by a man charging through the crowd, his clothes stained with blood.

      The stranger brandished a cleaver as he chased a lanky youth down the street. All of the surrounding market-goers stepped aside, but Kaifeng moved forward to block the street. The fellow at the front staggered to avoid crashing into him. His eyes grew wide as he stared up at Kaifeng’s considerable height, then the black cap and robe of his uniform, then at the sword in his belt.

      This mixture of shock and fear wasn’t uncommon. Constable Wu needed no special effort to appear menacing. He supposed it was a gift, given his position.

      “I didn’t do anything!” the youth protested.

      Kaifeng flicked his gaze over to the armed man who had come to a stop. He gestured with his knife. “He’s a thief, Constable.”

      The bloodstained garment was an apron. The weapon, a meat cleaver. It was the local butcher, not some madman.

      The young man, who was looking more and more like a half-starved boy, started babbling. “I was just walking in the street. He started chasing me with that knife. Of course I ran.”

      “He took money from my counter.”

      “I was never in your shop!”

      Kaifeng let the arguments fly without responding. He could drag both the accused thief and the butcher before Magistrate Li and let him settle the matter, but the line of petitioners at the tribunal had wound around the offices like a snake earlier that day.

      “Empty your pouch,” he directed.

      The butcher stood by, cleaver lowered but still gripped menacingly as the boy showed the pouch at his belt and his sleeves to be empty. Kaifeng was not yet satisfied.

      “Shoes.”

      The youth hesitated before reaching to take off his left shoe. There were two copper coins lying inside.

      “To keep from thieves,” he said sheepishly. “I earned that money unloading wagons in the market.”

      “Liar,” the butcher accused through his teeth. “Those were the same coins from my shop.”

      Kaifeng regarded both of them without blinking. The matter seemed a simple one. The boy was acting guilty. He protested too quickly and too loudly. He’d hidden his money. He was fidgeting as he spoke and was unable to keep his gaze steady.

      If taken before the magistrate, the money would be confiscated and returned to the butcher, the boy given a beating with the light rod and then the matter dismissed afterward. It wasn’t a constable’s duty to mete justice, but no one would fault him for resolving this dispute and sending the thief away with a public beating. It was only two copper coins, after all.

      But Kaifeng knew that two coins could very well mean the difference between a full belly and an empty one. A warm night or a cold one.

      The supposed thief was shifting about, now with only one shoe on, the other foot bare and unwashed, looking all the more guilty—or perhaps it wasn’t guilt at all. Merely fear.

      “Pick up the money,” Kaifeng instructed. “And put your shoe back on.”

      The butcher started to protest, but Kaifeng told him to lead them back to his shop. The youth didn’t attempt to flee and he walked head down between the butcher and the constable as they went down the lane. Bystanders watched the parade curiously, but none came forward to offer any further insight into the incident. Typical of the imperial city. One’s business was one’s own.

      The copper smell of blood met them at the far end of the lane. They passed by vendors selling live chickens and fish in baskets along the avenue. The butcher’s shop was one of the largest in this section of the market, though it was hidden away in the corner. It was a wooden shack, open in front so that the various cuts and portions could be visible from the street.

      An assistant, likely the butcher’s son, was still busy at work. The shop was full of customers looking to purchase the day’s meal. The long wooden cutting block that served as counter was stained dark and scored, and there was an assortment of freshly butchered