I. It was a miserable day in Walham Green, gloomy and wind-lashed and rain-soaked, and it seemed every pedestrian for miles had taken shelter in this Lyons Tea Room. The windows streamed with condensation, and the air was thick with hot breath and the smell of damp wool and camphor and boiled mutton. I''d been lucky to get a table to myself, and I was keeping it to myself, spreading out my legs and seeing off with a cold stare any customer who dared to approach. Selfish of me, perhaps, but I was on the Queen''s business and expecting a guest. The waitress, a thin, nervous woman in her thirties, looked worn-out and listless, much like the paper garlands that still festooned the place three weeks after Christmas. She could barely move between the tables, the place was so packed with customers and their sodden overcoats and dripping umbrellas. Stopping by my table she topped up my cup hastily, slopping tea into the saucer, but I made no remark.

There are times when it serves to make a scene and times to bite your tongue. Jakob was late. He was always late. I was used to it, and I understood his reasons: he hated me, and everything I stood for, and himself for associating with me. I found it amusing all the same that he always contrived to be exactly fifteen minutes late. Even his contempt was precisely measured. And on the dot he appeared, wrestling with the door handle while rain poured off the brim of his grubby slouch hat and a gust of wind tried to snatch the portfolio from under his arm. When at last he wrenched the door open it forced a loud brassy jangle from the bell, causing the young Latvian to freeze momentarily in the doorway.

His eyes darted right and left, as if waiting for everyone to stop talking and turn and stare. He was worried about being seen in my company, of course, but I was just as concerned about that as he was. That was why I''d been seated here facing the door for over an hour, discreetly watching the customers come and go, checking for familiar faces. But the hubbub continued unbroken; no one noticed Jakob or cared. He quickly relaxed and stepped in, pulling the door shut behind him and shaking the rain off his hat. His face was as pale and pinched as ever, and when his coal-black eyes met mine, he nodded, almost imperceptibly. I smiled, and it wasn''t just to put him at his ease. I was genuinely pleased to see the lad; I liked Jakob, for all his wrong-headed ideas.

I liked his intelligence, and his passion, and his sincerity. All the things that made him dangerous, in fact. He started making his way over. Barely in his twenties, he was so painfully thin he hardly needed to turn sideways to squeeze through the rows of seated customers, but all the same he jostled a few elbows and knocked a few hats askew with his portfolio. He ignored the angry stares; Jakob often mocked the English for their reluctance to complain even when they were perfectly entitled to, and he had a point. When at last he arrived at my table he did not greet me or offer to shake hands, but merely leaned his portfolio up against the table legs, hooked his hat on the nearest rack and unbuttoned his shabby overcoat. The rain had soaked through its thin material and into the worn jacket beneath. He''ll catch his death, I thought.

I caught the waitress''s eye and summoned her over with a lift of my chin. "Jakob, what will you have?" "I am not hungry," he said, shrugging. His words were addressed to the air rather than either of us. "Away out of that," I said. "You look half-starved, and you''re soaked through. Is that mutton stew I can smell?" This to the waitress. "Not sure if we have any left, sir." "A bowl of that, if you do.

Otherwise some of the oxtail soup." She nodded, and with a sharp glance at Jakob--his accent had clearly piqued her curiosity--she waded through the throng towards the kitchen. "So, Jakob, how have you been?" "The same. Coughing my lungs out." His eyes flickered round the room again, checking for surveillance; old habits die hard. "This city stinks. I don''t know how you people can breathe the air." "It was bad the other day, right enough.

Fog mixed with smoke. A proper London Particular. All the same, I dare say you can breathe more easily over here than back home." He didn''t smile, but he did meet my gaze at last. "And how have you been, Mr. Melville? Cracked many heads this week?" "I have not. Sure I employ people to do that for me." "Yes, I have seen them.

Hanging around in the street outside our meetings. Sitting in the back of the hall." "Don''t worry. If they need to crack any heads, they''ll be sure to crack yours too." Brushing tea from my moustache, I went on, "So, were you at the club last night?" My lack of subtlety seemed to amuse him, and he smiled at last. "You have to ask? Were your agents taking the night off? You know, I thought the hall was not so full as usual." "And who was the speaker?" I already knew the answer, but I wanted to put Jakob at ease. He wouldn''t feel any reluctance telling me information I could easily have picked up from a handbill in Soho.

"The speaker? Some German fool," sneered Jakob. "Rocker. Calls himself a ''progressive anarchist.'' " "And what do you call him?" "A cretin. A liberal democrat in revolutionary clothing." Jakob''s smile must have been handsome once, before the Tsar''s policemen broke his teeth with their boots. "He claims the principles of anarchy are not fixed but must be revised in response to what he calls historical circumstance." "A pragmatist, then.

" "A bourgeois reactionary. Making his excuses in advance for betraying the workers. There is only one historical circumstance, the oppression of the proletariat, and that has not changed for a thousand years--" Just as he was working himself up into a fine passion, Jakob fell silent, his face reddening, and looked away. He felt foolish, I suppose, for lecturing me on revolutionary theory. Detective Chief Superintendent William Melville, head of Scotland Yard''s Special Branch and occasional bodyguard to the British Royal Family, was hardly the type to be swayed by Marxist rhetoric. I raised an eyebrow, as if he''d made a valid point I needed to consider. I wasn''t about to argue with him, but I didn''t want to patronise him either, and it was a relief when the waitress banged down a plate of bread on the table between the two of us and a steaming bowl of mutton stew in front of Jakob. Forgetting his embarrassment, the young Latvian snatched up his spoon and dug in, wolfing down the meat and potatoes though they were so hot they must have scalded his mouth.

The lad was famished. While he worked away, I stirred another spoonful of sugar into my tea and watched him from the corner of my eye. Presently he stopped for breath and wiped his chin on the sleeve of his jacket. "I did see one new face," he volunteered, his mouth half-full. I let him read surprise and curiosity on my face, and he hurried on, gratified. "An American, I think, though German or Dutch by birth, judging by his accent. I heard him asking Rocker for a copy of that so-called newspaper of his, Germinal. " "And what did he look like, this American?" I was curious to hear if Jakob''s description matched the one I''d already heard; Sergeant Dawes hadn''t mentioned any accent.

"Thirty-one, thirty-two perhaps? Not so tall as you, or so big. Brown hair, like that man"--Jakob nodded at a slight, balding customer seated at the next table--" brown eyes, full moustache, no beard. His clothes were interesting." "Interesting how?" "They were old and worn, like this"--he held out the sleeve of his jacket--" but he was no pauper. He was too well fed. His hair was too well cut." "Military?" "He looked too intelligent to be a soldier." "A reporter, perhaps?" "He took no notes.

Not that informers do." "Interesting. I''ll make some enquiries." I felt Jakob peering at me as I sipped my tea. He was trying to make out if I was lying--perhaps I knew very well who this stranger was, and I was testing him. Then he seemed to decide that he could not tell, and that it did not matter. It was merely a crumb of information, worthless to his own cause, but something that I might value. "Any old friends?" I enquired, as if I was worried about him being lonely.

There was an instant of hesitation before he shrugged, his eyes flicking away. I didn''t press him: the details he was omitting carried their own significance. "That smells good," I said, nodding at the bowl. Jakob grunted and resumed eating, and I watched him until he''d cleaned the dish and was wiping the last of the gravy up with a heel of bread. "Another?" The anarchist shook his head. "I am full," he said. "Thank you." No sooner had he spoken than he blinked self-consciously, and almost bit his tongue.

I stifled a sigh of pity. For a moment there he had lapsed into good manners, manners that had no doubt been beaten into him as a child. But now he felt ashamed of his petit-bourgeois upbringing, and of being so polite to me, an agent of the State. Mother of God, but these idealists make it so hard on themselves. They may sneer at those of us who have faith, but at least we Catholics can get ab.