“About ten years, as far as I recall.''

"And he is your mother's brother?"

"You are already aware of that." He dodged a group of gentlemen ambling along deep in conversation and oblivious of the obstruction they caused. "Really, if this is a sample of your attempts at detection, I am surprised you maintain employment. Uncle Septimus occasionally drinks a little more than you may consider prudent, and he is certainly not wealthy, but he is a kind and decent man whose misfortune has nothing whatever to do with my sister's death, and you will learn nothing useful by prying into it!"

Monk admired him for his defense, true or not. And he determined to discover what the misfortune was, and if Octa-via had learned something about him that might have robbed him of this double-edged but much needed hospitality had she told her father.

"Does he gamble, sir?" he said aloud.

“What?'' But there was a flush of color on Cyprian's cheeks, and he knocked against an elderly gentleman in his path and was obliged to apologize.

A coster's cart came by, its owner crying his wares in a loud, singsong voice.

"I wondered if Mr. Thirsk gambled," Monk repeated. "It is a pastime many gentlemen indulge in, especially if their lives offer little other change or excitement-and any extra finance would be welcome.''

Cyprian's face remained carefully expressionless, but the color in his cheeks did not fade, and Monk guessed he had touched a nerve, whether on Septimus's account or Cyprian's own.

"Does he belong to the same club as you do, sir?" Monk turned and faced him.

"No," Cyprian replied, resuming walking after only a momentary hesitation. "No, Uncle Septimus has his own club."

"Not to his taste?" Monk made it sound very casual.

"No," Cyprian agreed quickly. "He prefers more men his own age-and experience, I suppose."

They crossed Hamilton Place, hesitating for a carriage and dodging a hansom.

“What would that be?'' Monk asked when they were on the pavement again.

Cyprian said nothing.

"Is Sir Basil aware that Mr. Thirsk gambles from time to time?" Monk pursued.

Cyprian drew in his breath, then let it out slowly before answering. Monk knew he had considered denying it, then put loyalty to Septimus before loyalty to his father. It was another judgment Monk approved.

“Probably not,'' Cyprian said.”I would appreciate it if you did not find it necessary to inform him."

"I can think of no circumstance in which it would be necessary," Monk agreed. He made an educated guess, based on the nature of the club from which Cyprian had emerged. "Similarly your own gambling, sir."

Cyprian stopped and swiveled to face him, his eyes wide. Then he saw Monk's expression and relaxed, a faint smile on his lips, before resuming his stride.

"Was Mrs. Haslett aware of this?" Monk asked him. "Could that be what she meant when she said Mr. Thirsk would understand what she had discovered?"

"I have no idea." Cyprian looked miserable.

"What else have they particularly in common?" Monk went on. "What interests or experiences that would make his sympathy the sharper? Is Mr. Thirsk a widower?"

"No-no, he never married."

"And yet he did not always live in Queen Anne Street. Where did he live before that?"

Cyprian walked in silence. They crossed Hyde Park Comer, taking several minutes to avoid carriages, hansoms, a dray with four fine Clydesdales drawing it, several costers' carts and a crossing sweeper darting in and out like a minnow trying to clear a path and catch his odd penny rewards at the same time. Monk was pleased to see Cyprian toss him a coin, and added another to it himself.

On the far side they went past the beginning of Rotten Row and strolled across the grass towards the Serpentine. A troop of gentlemen in immaculate habits rode along the Row, their horses' hooves thudding on the damp earth. Two of them laughed loudly and broke into a canter, harness jingling. Ahead of them three women turned back to look.

Cyprian made up his mind at last.

"Uncle Septimus was in the army. He was cashiered. That is why he has no means. Father took him in. He was a younger son so he inherited nothing. There was nowhere else for him.''

“How distressing.'' Monk meant it. He could imagine quite sharply the sudden reduction from the finance, power and status of an officer to the ignominy and poverty, and the utter friendlessness, of being cashiered, stripped of everything- and to your friends, ceasing to exist.

"It wasn't dishonesty or cowardice," Cyprian went on, now that he was started, his voice urgent, concerned that Monk should know the truth. "He fell in love, and his love was very much returned. He says he did nothing about it-no affair, but that hardly makes it any better-"

Monk was startled. There was no sense in it. Officers were permitted to marry, and many did.

Cyprian's face was full of pity-and wry, deprecating humor.

"I see you don't understand. You will. She was the colonel's wife."

"Oh-" There was nothing more to add. It was an offense that would be inexcusable. Honor was touched, and even more, vanity. A colonel so mortified would have no retaliation except to use his office. "I see."

"Yes. Poor Septimus. He never loved anyone else. He was well in his forties at that time, a major with an excellent record." He stopped speaking and they passed a man and a woman, apparently acquaintances from their polite nods. He tipped his hat and resumed only when they were out of earshot. "He could have been a colonel himself, if his family could have afforded it-but commissions aren't cheap these days. And the higher you go-" He shrugged. "Anyway, that was the end of it. Septimus found himself middle-aged, despised and penniless. Naturally he appealed to Mama, and then came to live with us. If he gambles now and then, who's to blame him? There's little enough pleasure in his life."

"But your father would not approve?"

"No he would not.'' Cyprian's face took on a sudden anger. "Especially since Uncle Septimus usually wins!"

Monk took a blind guess. "Whereas you more usually lose?"

"Not always, and nothing I can't afford. Sometimes I win.''

"Did Mrs. Haslett know this-of either of you?"

"I never discussed it with her-but I think she probably knew, or guessed about Uncle Septimus. He used to bring her presents when he won.'' His face looked suddenly bleak again. "He was very fond of her. She was easy to like, very-" He looked for the word and could not find it. "She had weaknesses that made her comfortable to talk to. She was hurt easily, but for other people, not a matter of her taking offense-Tavie never took offense."

The pain deepened in his face and he looked intensely vulnerable. He stared straight ahead into the cold wind. "She laughed when things were funny. Nobody could tell her who to like and who not to; she made up her own mind. She cried when she was upset, but she never sulked. Lately she drank a little more than was becoming to a lady-" His mouth twisted as he self-consciously used such a euphemism. "And she was disastrously honest." He fell silent, staring across at the wind ripples whipping the water of the Serpentine. Had it not been totally impossible that a gentleman should weep in a public place, Monk thought at that moment Cyprian might have.

Whatever Cyprian knew or guessed about her death, he grieved acutely for his sister.

Monk did not intrude.

Another couple walked past them, the man in the uniform of the Hussars, the woman's skirt fashionably fringed and fussy.

Finally Cyprian regained his self-control.

"It would have been something despicable," he continued. "And probably still a danger to someone before Tavie would have told another person's secret, Inspector." He spoke with conviction. "If some servant had had an illegitimate child, or a passionate affair, Tavie was the last person who would have betrayed them to Papa-or anyone else. I don't honestly think she would have reported a theft, unless it had been something of immense value.''