The shogun heaved a tired sigh. “There are so many new people in the, ahh, government these days. I can’t keep them straight.” Annoyance pinched his features. “It would be much easier for me if the same men would stay in the same posts. I don’t know why they can’t.”

Nobody offered an explanation. The shogun didn’t know about the war between Lord Matsudaira and Chamberlain Yanagisawa, or Lord Matsudaira’s victory and the ensuing purge; no one had told him, and since he rarely left the palace, he saw little of what went on around him. He knew Yanagisawa had been exiled, but he wasn’t clear as to why. Neither Lord Matsudaira nor Yanagisawa had wanted him to know that they aspired to control the regime, lest he put them to death for treason. And now Lord Matsudaira wanted the shogun kept ignorant of the fact that he’d seized power and virtually ruled Japan. No one dared disobey his orders against telling the shogun. A conspiracy of silence pervaded Edo Castle.

“How did Ejima die?” Sano asked Lord Matsudaira.

“He fell off his horse during a race at the Edo Castle track,” Lord Matsudaira said.

“Dear me,” the shogun said. “Horse racing is such a dangerous sport, perhaps it should be, ahh, prohibited.”

“I recall hearing that Ejima was a particularly reckless rider,” Sano said, “and he’d been in accidents before.”

“I don’t believe this was an accident,” Lord Matsudaira said, his tone sharp. “I suspect foul play.”

“Oh?” Sano saw his surprise mirrored on his men’s faces. “Why?”

“This isn’t the only recent, sudden death of a high official,” Lord Matsudaira said. “First there was Ono Shinnosuke, the supervisor of court ceremony, on New Year’s Day. In the spring, Sasamura Tomoya, highway commissioner, died. And just last month, Treasury Minister Moriwaki.”

“But Ono and Sasamura died in their sleep, at home in bed,” Sano said. “The treasury minister fell in the bathtub and hit his head. Their deaths seem unrelated to Ejima’s.”

“Don’t you see a pattern?” Lord Matsudaira’s manner was ominous with insinuation.

“They were all, ahh, new to their posts, weren’t they?” the shogun piped up timidly. He had the air of a child playing a guessing game, hoping he had the right answer. “And they died soon after taking office?”

“Precisely,” Lord Matsudaira said, surprised that the shogun remembered the men, let alone knew anything about them.

They were all Lord Matsudaira’s trusted cronies, installed after the coup, Sano could have added, but didn’t.

“These deaths may not have been as natural as they appeared,” said Lord Matsudaira. “They may be part of a plot to undermine the regime by eliminating key officials.”

While Lord Matsudaira’s enemies inside and outside the bakufu were constantly plotting his downfall, Sano didn’t know what to think about a conspiracy to weaken the regime within a regime that he’d established. During the past six months, Sano had watched him change from a confident leader of a major Tokugawa branch clan to a nervous, distrustful man insecure in his new position. Frequent sabotage and violent attacks against his army by Yanagisawa’s outlaws fed his insecurity. Stolen power could be stolen from the thief, Sano supposed.

“A plot against the regime?” Always susceptible to warnings about danger, the shogun gasped. He looked around as though he, not Lord Matsudaira, were under attack. “You must do something!” he exclaimed to his cousin.

“Indeed I will,” Lord Matsudaira said. “Chamberlain Sano, I order you to investigate the deaths.” Although Sano was second-in-command to the shogun, he answered to Lord Matsudaira, as did everyone else in the government. In his haste to protect himself, Lord Matsudaira forgot to manipulate the shogun into giving the order. “Should they prove to be murders, you will identify and apprehend the killer before he can strike again.”

A thrill of glad excitement coursed through Sano. Even if the deaths turned out to be natural or accidental, here was a welcome reprieve from paperwork. “As you wish, my lord.”

“Not so fast,” the shogun said, narrowing his eyes in displeasure because Lord Matsudaira had bypassed his authority. “I seem to recall that Sano-san isn’t a detective anymore. Investigating crimes is no longer his job. You can’t ask him to, ahh, dirty his hands investigating those deaths.”

Lord Matsudaira hastened to correct his mistake: “Sano-san is obliged to do whatever you wish, regardless of his position. And you wish him to protect your interests, don’t you?”

Obstinacy set the shogun’s weak jaw. “But Chamberlain Sano is too busy.”

“I don’t mind the extra work, Your Excellency.” Now that Sano had his opportunity for action, he wasn’t going to give it up. His spiritual energy soared at the prospect of a quest for truth and justice, which were fundamental to his personal code of honor. “I’m eager to be of service.”

“Many thanks,” the shogun said with a peevish glare at Lord Matsudaira as well as at Sano, “but helping me run the country requires all your attention.”

Now Sano remembered the million tasks that awaited him. He couldn’t leave his office for long and risk losing his tenuous control over the nation’s affairs. “Perhaps His Excellency is right,” he reluctantly conceded. “Perhaps this investigation is a matter for the police. They are ordinarily responsible for solving cases of mysterious death.”

“A good idea,” the shogun said, then asked Lord Matsudaira with belligerent scorn, “Why didn’t you think of the police? Call them in.”

“No. I must strongly advise you against involving the police,” Lord Matsudaira said hastily.

Sano wondered why. Police Commissioner Hoshina was close to Lord Matsudaira, and Sano would have expected Lord Matsudaira to give Hoshina charge of the investigation. Something must have gone wrong between them, and too recently for the news to have spread.

“Chamberlain Sano is the only man who can be trusted to get to the bottom of this matter,” Lord Matsudaira declared.

It was true that during the faction war Sano had remained neutral, resisting much pressure to take sides with Yanagisawa or Lord Matsudaira. Afterward, he’d loyally served Lord Matsudaira in the interest of restoring peace. And long before the trouble started, he’d earned himself a reputation for independence of mind and pursuing the truth even to his own detriment.

“Unless the murderer is caught, the regime’s officials will be killed off until there are none left,” Lord Matsudaira said to the shogun. “You’ll be all alone.” He spoke in a menacing voice: “And you wouldn’t like that, would you?”

The shogun shrank on the dais. “Oh, no, indeed.” He cast a horrified glance around him, as though he envisioned his companions disappearing before his eyes.

If Lord Matsudaira allowed attacks on his regime, he would lose face as well as power, and Sano knew that was worse than death for a proud man like him. “Then you must order Chamberlain Sano to drop everything, investigate the murders, and save you,” Lord Matsudaira said.

“Yes. You’re right.” The shogun’s resistance wilted. “Sano-san, do whatever my cousin suggests.”

“A wise decision, Your Excellency,” Lord Matsudaira said. A hint of a smile touched his mouth, expressing contempt for the shogun and pride at how easily he’d brought him to heel. He told Sano, “I’ve sent men to secure the racetrack and guard the corpse. They have orders that no one leaves or enters until after you’ve examined the scene. But you’d better go at once. The crowd will be getting restless.”

Sano and his men bowed in farewell. As they left the room, Sano’s step was light, no matter what calamities might strike during his absence from the helm of the government. Never mind how much work would accumulate while he looked into Chief Ejima’s death; he felt like a prisoner released from jail. Here was his chance to apply all the might and resources of his new position to the cause of justice.