devised a practical way to smuggle a courtesan out of Yoshiwara.
“Lady Wisteria was last seen by her yarite sometime after the hour of the boar,” Hirata said. “Who left Yoshiwara between then and the time Lord Mitsuyoshi’s murder was discovered?”
The guards’ postures stiffened. “No one did,” said the lean man. “The gates are locked after curfew at midnight. Everyone who’s inside Yoshiwara then has to stay until morning. It’s the law.”
“But not everyone stayed last night, did they?” Hirata said, for he knew that enough money could buy a passage out of Yoshiwara after curfew. Seeing the guards’ expressions turn fearful, he said, “I won’t punish you for taking bribes, so just tell me: Who left the quarter last night?”
The men exchanged leery glances; then the lean man said reluctantly, “There was Kinue the oil merchant, with some servants and friends.”
Hirata knew that the merchant owned a major shop in Nihonbashi. “Who else?”
“A group from the Mori clan, and their bodyguards,” said the swarthy man.
This news piqued Hirata’s interest: The Mori were powerful gangsters, associated with trouble of all kinds.
“And Nitta Monzaemon, the treasury minister,” said the lean guard, “with his retainers.”
Hirata frowned, disturbed by the idea that high bakufu officials might be involved in Wisteria’s disappearance and Lord Mitsuyoshi’s murder. “How did all these people travel?”
“Kinue’s party walked to and from the river ferries,” said the swarthy guard. “The Mori group rode the causeway.”
Because the law granted only samurai the right to travel on horseback, the merchant had gone on foot. The Mori, however, were rōnin —masterless samurai—and could therefore ride. It seemed unlikely to Hirata that Lady Wisteria had accompanied either party. Women didn’t ride, and if Wisteria had done so last night, she would have risked notice by patrolling soldiers. A woman walking with a group of men would have been just as conspicuous. But a desperate fugitive courtesan might have taken the risk, if she’d found willing accomplices.
“Treasury Minister Nitta’s retainers also rode,” said the lean guard. “But he had a palanquin waiting for him outside the quarter.”
Excitement warmed Hirata’s cold muscles. The palanquin made Nitta a more promising lead than the others. However Wisteria had gotten out of Yoshiwara, the palanquin could have afterward carried her off, in safety and privacy, to a destination known to the treasury minister. Hirata thanked the guards and trudged through the swirling snowflakes to find Sano.
The twenty other guests who’d attended last night’s party at the Owariya were high-ranking bakufu members and their retainers. During a lengthy search of Yoshiwara, Sano and his detectives located six of the men, as well as the courtesans who’d entertained them at the ageya , and learned that they’d stayed together during the time when the murder occurred. Apparently, none of these people had left the party to slip upstairs, and none had reason to kill the shogun’s heir. Sano then tracked down five more guests at the Tsutaya teahouse.
The Tsutaya occupied the ground floor of a building near the quarter’s rear wall. A cylindrical lantern over the doorway bore the characters of its name; light gleamed between the slats of the closed shutters across the front. Sano dusted snow off himself and entered. Inside the elegant room, an alcove held a porcelain vase of bare branches, and maids served drinks to the five men. Charcoal braziers emitted warmth, but when everyone turned to look at Sano, their unfriendly expressions chilled the atmosphere.
A man seated before the alcove spoke: “Greetings, Sōsakan-sama .” Sano knelt and bowed. “Greetings, Honorable Senior Elder Makino.” The senior elder was one of five officials who advised the Tokugawa on national policy and comprised the bakufu ’s highest echelon. He had an
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