They went through the tree-filled plaza of Tlacolula, where natives were squatting on the ground, selling fruits or sweets, then down a road between high walls. They pulled up at last at big gate-doors, beyond which was a heavy pink-and-yellow house, and beyond the house, high, dark cypress trees.

In the road two motor-cars were already standing. That meant other visitors. Owen knocked on the studded fortress doors: there was an imbecile barking of dogs. At last a little footman with a little black moustache opened silently.

The square, inner patio, dark, with sun lying on the heavy arches of one side, had pots of red and white flowers, but was ponderous, as if dead for centuries. A certain dead, heavy strength and beauty seemed there, unable to pass away, unable to liberate itself and decompose. There was a stone basin of clear but motionless water, and the heavy reddish-and-yellow arches went round the courtyard with warrior-like fatality, their bases in dark shadow. Dead, massive house of the Conquistadores, with a glimpse of tall-grown garden beyond, and further Aztec cypresses rising to strange dark heights. And dead silence, like the black, porous, absorptive lava rock. Save when the tram-cars battered past outside the solid wall.

Kate went up the jet-like stone staircase, through the leather doors. Mrs Norris came forward on the terrace of the upper patio to receive her guests.

“I’m so glad, my dear, that you came. I should have rung you up before, but I’ve had such trouble with my heart. And the doctor wanting to send me down to a lower altitude! I said to him, I’ve no patience! If you’re going to cure me, cure me at an altitude of seven thousand feet or else admit your incompetence at once. Ridiculous, this rushing up and down from one altitude to another. I’ve lived at this height all these years. I simply refuse to be bundled down to Cuernavaca or some other place where I don’t want to go. Well, my dear, and how are you?”

Mrs Norris was an elderly woman, rather like a conquistador herself in her black silk dress and her little black shoulder-shawl of fine cashmere, with a short silk fringe, and her ornaments of black enamel. Her face had gone slightly grey, her nose was sharp and dusky, and her voice hammered almost like metal, a slow, distinct, peculiar hard music of its own. She was an archaeologist, and she had studied the Aztec remains so long, that now some of the black-grey look of the lava rock, and some of the experience of the Aztec idols, with sharp nose and slightly prominent eyes and an expression of tomb-like mockery, had passed into her face. A lonely daughter of culture, with a strong mind and a dense will, she had browsed all her life on the hard stones of archaeological remains, and at the same time she had retained a strong sense of humanity, and a slightly fantastic humorous vision of her fellow men.

From the first instant, Kate respected her for her isolation and her dauntlessness. The world is made up of a mass of people and a few individuals. Mrs Norris was one of the few individuals. True, she played her social game all the time. But she was an odd number; and all alone, she could give the even numbers a bad time.

“But come in. Do come in!” she said, after keeping her two guests out on the terrace that was lined with black idols and dusty native baskets and shields and arrows and tapa, like a museum.

In the dark sitting-room that opened on to the terrace were visitors: an old man in a black morning coat and white hair and beard, and a woman in black crêpe-de-chine, with the inevitable hat of her sort upon her grey hair: a stiff satin turned up on three sides and with black ospreys underneath. She had the baby face and the faded blue eyes and the middle-west accent inevitable.

“Judge and Mrs Burlap.”