Then, looming before him like a blessing from the gods, there appeared a building with a dark blue curtain hanging out front. The curtain displayed the character yu: hot water. A bathhouse. Sano jerked on the reins and fell off his horse. Dashing inside, he threw some coins on the counter.

“Sir, the price is only eight zeni!” the attendant cried, holding out Sano’s change.

Sano ignored him. He snatched a bag of rice-bran soap from the counter and shoved his swords at the attendant for safekeeping. Then he stumbled into the bathing area. In the dim, steamy room, men in loincloths and women in thin under-kimonos scrubbed and rinsed themselves, or soaked in the deep tub. Oblivious to their curious glances, he ripped off his clothes, throwing them on the floor in an untidy heap. He scoured his skin with the soap until it hurt. He sloshed a bucket of water over himself. Then he plunged into the tub, completely immersing himself again and again. The water was scalding hot and scummy with soap residue, but he forced himself to keep his eyes and mouth open so that it could cleanse him inside as well as out.

Finally a sense of peace came over him. He no longer felt contaminated. Gasping, he dragged himself out of the tub and went to sit on a bench in the steam room. Then he closed his eyes and groaned as realization struck him.

Noriyoshi had been murdered. Logic told him that Yukiko had, too. But since he couldn’t tell anyone about the illegal dissection, he must find some other way to prove what no one was supposed to know.

Sano awoke to the sound of footsteps outside his bedchamber in the yoriki barracks. Stirring beneath thick quilts, he lifted his head from his wooden neck rest. A slit of light widened as the door slid open, and the maid entered on her knees, bearing a bucket of hot coals.

“Good morning, yoriki-san,” she said cheerfully, bending to dump some coals into a brazier near his futon.

Through the thin walls came other sounds of morning in the barracks. The veranda that ran past the doors of his and ten other adjoining apartments creaked and shuddered under hurrying feet. Sano’s colleagues called greetings to one another. It had taken him a while to get used to the noise, so different from the quiet of the house where he’d lived with only his parents and one maid-of-all-work. Grimacing at a loud crash from the other side of the wall, he rose cautiously.

To his relief, the queasiness that had continued all yesterday evening after the dissection had passed. He felt refreshed, hungry, and even confident that he could discover who had killed Noriyoshi and Yukiko. Only the lingering fear of disobeying Magistrate Ogyu and concern for his reputation clouded his thoughts.

Hurriedly Sano pulled on his heavy winter robe and went to the entryway for his shoes. Shivering in the chill gray morning, he followed the veranda to the privies attached to the building. He saw none of his colleagues, for which he was glad: the camaraderie they shared didn’t include him.

When Sano returned to his rooms, his manservant helped him wash, then dress in fresh black hakama, white under-robe, dark blue kimono printed with black squares, and a black sash. The maid had stored his bedding in the closet, removed yesterday’s clothes for washing, and swept the mats. As the manservant oiled and arranged his hair, Sano reflected that his position had its benefits. This apartment, located within the police compound, was bigger and better than he’d ever imagined having. A whole family could sleep in the bedchamber. The sitting room, equally large, had a desk alcove with built-in shelves, like one in a rich man’s house. His income was two hundred koku a year, the cash equivalent of enough rice to feed two hundred men for that long. Even after deductions for room, board, stable fees, and servants’ wages, he made many times as much as he had tutoring.

Sano sighed inwardly as he dismissed his manservant and headed for the barracks dining room. He couldn’t really enjoy these pleasures because his peers were anything but welcoming.

Although it was late, six men still knelt in the dining room, finishing their morning meal: Yamaga, Hayashi, and four others, all immaculately groomed and dressed, manicured hands holding their tea bowls. Their heads turned toward Sano as he paused in the entrance. The conversation ceased.

Then Hachiya Akira, senior yoriki, a heavy man of fifty with a soft-jowled face, spoke. “We thought you were not coming.” He took another sip of tea from his bowl. “Many thanks for giving us the honor of your company.” Murmurs from the others echoed the mild disapproval in his tone.

“My apologies,” Sano said as he took his place beside Hayashi. As little as they welcomed his presence, the other yoriki still expected him at meals and in their rooms when they gathered at night to drink and talk. Otherwise he would have eaten in his own apartment and spent his free time reading or with old friends. This endurance of slights, baiting, and loneliness was a duty he couldn’t shirk.

“Very well.” Releasing him. Hachiya turned to the others and resumed their conversation, which, as usual, dealt with politics.

“Whatever one thinks of the government,” he said, “it does maintain order throughout our nation. There has not been a significant disturbance since the Shimabara peasant uprising was quelled more than fifty years ago. Because the Tokugawa military force far exceeds that of any daimyo clan that might challenge the regime, we are free from the threat of war.”

But throughout history, ambitious men had successfully faced great challenges to win power for themselves, Sano remembered. Five hundred years ago, Minamoto Yoritomo-a Tokugawa ancestor-had defeated the imperial forces to become shogun. The Ashikaga clan had supplanted the Minamoto. More recently, great warlords had waged almost a hundred years of civil war in their quest to dominate. Despite the apparent permanence of the Tokugawa supremacy, no regime lasts forever. That the government was quick to detect and crush budding insurrections showed that it recognized this fact. Still, a majority of samurai considered the Tokugawas invincible and such precautions superfluous.

“However, I must admit that things have changed since the assassination of that superb statesman, the Great Elder Hotta Masatoshi,” Hachiya continued. “Without his guidance, Shogun Tokugawa Tsunayoshi seems to have lost his taste for government affairs. Why, I remember when he conducted proceedings against the corruption in Takata just eight years ago. The daimyo was stripped of his fief, his second-in-command was ordered to commit seppuku, and the rest of the partisans were banished. Now Tsunayoshi occupies himself with other pursuits. Lecturing his officials on Chinese philosophy and classics. Reviving the old Shinto festivals. Acting as patron to the theater and endowing Confucian academies.”

Hachiya’s neutral tone implied no dissatisfaction. With spies everywhere, no one dared criticize the shogun openly. But Sano had gotten the message and knew the others had, too. Tokugawa Tsunayoshi had his detractors, both here in this room and at every level of society.

Yamaga’s thin nostrils flared in distaste as he said, “His Excellency’s chief chamberlain-the clever and charming Yanagisawa- wields much power now.” He set down his bowl. Then, in a lighter manner, as if to change the subject: “The incidence of certain physical practices seems to be on the rise. One can observe the consequences. His Excellency… many individuals… the treasury… ” He let the words hang.

“Ah.” Noncommittal sounds came from the others as they nodded and lowered their eyes.

Sano hid a smile as he accepted an ozen-an individual meal tray containing rice, fish, pickled radish, and tea-from the maid. Yamaga’s gift for circumspect communication nearly matched Ogyu’s. He’d just told them, although not in so many words, that the rumormongers said Chamberlain Yanagisawa preferred men to women and had had an affair with the shogun, whose protege he’d been since his youth. From that affair sprang Yanagisawa’s influence over the nation. And the shogun’s own appetite for men wasn’t satisfied by Yanagisawa. Evidently he used government funds to lavish gifts upon many lovers, including a harem of boys. This had caused resentment within the ranks of the shogun’s retainers, as well as among the great daimyo, although not because they disapproved of his sexual preference. Many samurai practiced manly love; they considered it an expression of the Way of the Warrior. Rather they objected to the shogun’s blatant favoritism. The conversation turned to general matters. Talking during meals was considered rude, but the other men had finished eating and apparently saw nothing wrong with gossiping around Sano as he ate. Excluded from the conversation, as he had been every morning, Sano mentally stepped back to look at himself and his companions. How different they were from the warriors of old!