WHEN I reached Amos Darrel, on the other side of the room, he no longer had Beth for company. Instead, he was conversing politely with a young olive skinned girl with rather long dark hair.

"Your wife deserted me to consult with a matronly female about P.T.A.," Amos reported. "Her refreshment needs have already been supplied, but I think Miss Herrera will take that extra Martini off your hands." He made a gesture of introducing us to each other "Miss Barbara Herrera, Mr. Matthew Helm." He glanced at me, and asked idly: "Who are those people who just came in, Matt?"

I was passing the extra drink to the girl. My hand was quite steady. I didn't spill a drop. "I haven't any idea," I said.

"Oh, I thought you looked as if you recognized them." Amos sighed. "Some of Fran's friends from New York, I suppose… I couldn't persuade you to sneak back into my study for a game of chess?"

I laughed. "Fran would never forgive me. Besides, you'd have to spot me a queen or a pair of rooks to make a game of it."

"Oh, you're not that bad," he said tolerantly.

"I'm not a mathematical genius, either," I said.

He was a plump, balding little man with steel-rimmed glasses, behind which his eyes, at the moment, had a vague look that could have been mistaken for stupidity. Actually, in his own field, Amos was one of the least stupid men in the United States-perhaps in the world. This much I knew. Just precisely what his field was, I couldn't tell you. Even if I knew, I probably wouldn't be allowed to tell you; but I didn't know, and I hadn't the slightest desire to find out. I had enough secrets of my own without worrying about those belonging to Amos Darrel and the Atomic Energy Commission.

All I knew was that the Darrels lived in Santa Fe because Fran Darrel liked it better than Los Alamos, which she considered an artificial little community fill of dull scientific people. She much preferred colorful characters like myself, who nibbled at the fringes of art, and Santa Fe is fill of them. Amos owned a hot Porsche Carrera coupe in which he commuted daily, summer and winter, the thirty-odd miles up to The Hill, as it's known locally. The souped-up little sports car didn't really go with his appearance or what I knew of his character, but then I don't claim to understand the vagaries of genius, particularly scientific genius.

I did understand him well enough to realize that his present vague, glazed look didn't indicate stupidity, but simple boredom. Talking to us low-grade morons who don't know an isotope from a differential equation bores most of those big brains stiff.

Now he yawned, making only a token effort to hide it, and said in a resigned voice: "Well, I'd better go over and greet the newcomers. Excuse me."

We watched him move away. The girl beside me laughed ruefully. "Somehow, I don't have the feeling Dr. Darrel found me very entertaining," she murmured.

"It's not your fault," I said. "You're just too big, that's all.,,

She glanced up at me, smiling. "How am Ito take that remark?"

"Not personally," I assured her. "What I mean is, Amos isn't really interested in anything much bigger than an atom. Oh, he might stretch a point and settle for a molecule now and then, but it would have to be a small molecule."

She asked innocently, "Oh, are molecules bigger than atoms, Mr. Helm?"

I said, "Molecules are made up of atoms. Now you have the sum total of my information upon that subject, Miss Herrera. Please address any further inquiries to your host."

"Oh," she said, "I wouldn't dare!"

I saw that Tina and her suede-jacketed escort were starting to work their way around the room through a barrage of introductions, under the inexorable Leadership of Fran Darrel, a small, dry, wisp of a woman with a passion for collecting interesting people. It was a pity, I thought, that Fran would never know what a jewel of interest she had in Tina..

I turned my attention back to the girl. She was quite a pretty girl, wearing a lot of Indian silver and one of the squaw dresses, also called fiesta dresses, the construction of which is a local industry. This one was all white, copiously trimmed with silver braid. As usual, it had a very full, pleated skirt supported by enough stiff petticoats to form a traffic hazard in the Darrels' crowded living room.

I asked, "Do you live here in Santa Fe, Miss Herrera?"

"No, I'm just here on a visit." She looked up at me. She had very nice eyes, dark-brown and lustrous, to go with the Spanish name. She said, "Dr. Darrel tells me you're a writer. What name do you write under, Mr. Helm?"

I suppose I should be used to it by now, but I still can't help wondering why they do it and what they expect to gain by it. It must seem to them like a subtle social maneuver, a way of skillfully avoiding the dreadful admission that they never heard of a guy named Helm or read any of his works. The only trouble is, I've never used a pseudonym in my life-my literary life, that is. There was a time when I answered to the code name of Eric, but that's another matter.

"I use my own name," I said, a little stiffly. "Most writers do, Miss Herrera, unless they're pretty damn prolific, or run into publication conflicts of some kind."

"Oh," she said, "I'm sorry."

It -occurred to me that I was being pompous, and I grinned. "I write Western stories, mostly," I said. "As a matter of fact, I'm leaving in the morning to get some material for a new one." I glanced at my Martini glass.

"Assuming that I'm in condition to drive, that is."

"Where are you going?"

"Down the Pecos Valley first, and then through lbxas to San Antonio," I said. "After that I'll head north along one of the old cattle trails to Kansas, taking pictures along the way."

"You're a photographer, too?"

She was a cute kid, but she was overdoing the breathless-admiration routine. After all, it wasn't as if she were talking to Ernest Hemingway.

"Well, I used to be a newspaperman of sorts," I said. "On a small paper you learn to do a little bit of everything. That was before the war. The fiction- came later."

"It sounds perfectly fascinating," the girl said. "But I'm sorry to hear you're leaving. I kind of hoped, if you had a little time… I mean, there's something I wanted to ask you, a favor. When Dr. Darrel told me you were a real live author.." She hesitated, and laughed in an embarrassed way, and I knew exactly what was coming. She said, "Well, I've been trying to write a little myself, and I do so want to talk to someone who..

Then, providentially, Fran Darrel was upon us, with Tina and her boy friend, and we had to turn to meet them. Fran was dressed pretty much like my companion, except that her blue fiesta dress, her waist, her arms, and her neck were loaded even more heavily with Indian jewelry. Well, she could afford it. She had money of her own, apart from Amos' government salary. She introduced the newcomers and the girl, and it was my turn.

"… and here's somebody I particularly want you to meet, my dear," Fran said to Tina in her high, breathless voice. "One of our local celebrities, Matt Helm. Matt, this is Madeleine Loris, from New York, and her husband… Hell, I've forgotten your first name."

"Frank," the blond man said.

Tina had already put out her hand for me to take. Slender and dark and lovely, she was a real pleasure to look at in her sleeveless black dress, and her little black hat that was mostly a scrap of veil, and her long black gloves. I mean, these regional costumes are all very well, but if a woman can look like that, why should she deck herself out to resemble a Navajo squaw?

She extended her hand with a graciousness that made me want to click my heels, bow low, and raise her fingers to my lips-I remembered a time when I had, very briefly, been forced to impersonate a Prussian nobleman. All kinds of memories were coming back, and I could recall very clearly-although it seemed most improbable now-making love to this fashionable and gracious lady in a ditch in the rain, while uniformed men beat the dripping bushes all around us. I could also remember the week in London… Looking into her face, I saw that she, too, was remembering. Then her little finger moved very slightly in my grasp, in a certain way. It was the recognition signal, the one that asserted authority and demanded obedience.