The motor-cars returning to town left early, in a little group. If bandits were out, they had best keep together. Even the fifis had a pistol on their hips.

But it was Saturday, so some of the young “elegance” was staying on, till the next day; to bathe and flutter in the sun.

It was Saturday, so the plaza was very full, and along the cobble streets stretching from the square, many torches fluttered and wavered upon the ground, illuminating a dark salesman and an array of straw hats, or a heap of straw mats called petates, or pyramids of oranges from across the lake.

It was Saturday, and Sunday morning was market. So, as it were suddenly, the life in the plaza was dense and heavy with potency. The Indians had come in from all the villages, and from far across the lake. And with them they brought the curious heavy potency of life which seems to hum deeper and deeper when they collect together.

In the afternoon, with the wind from the south, the big canoas, sailing-boats with black hulls and one huge sail, had come drifting across the waters, bringing the market-produce and the natives to their gathering ground. All the white specks of villages on the far shore, and on the far-off slopes, had sent their wild quota to the throng.

It was Saturday, and the Indian instinct for living on into the night, once they are gathered together, was now aroused. The people did not go home. Though market would begin at dawn, men had no thought of sleep.

At about nine o’clock, after the fifi dance was shattered, Kate heard a new sound, the sound of a drum, or tom-tom, and saw a drift of the peons away to the dark side of the plaza, where the side market would open to-morrow. Already places had been taken, and little stalls set up, and huge egg-shaped baskets, big enough to hold two men, were lolling against the wall.

There was a rippling and a pulse-like thudding of the drum, strangely arresting on the night air, then the long note of a flute playing a sort of wild, unemotional melody, with the drum for a syncopated rhythm. Kate, who had listened to the drums and the wild singing of the Red Indians in Arizona and New Mexico, instantly felt that timeless, primeval passion of the prehistoric races, with their intense and complicated religious significance, spreading on the air.

She looked inquiringly at Juana, and Juana’s black eyes glanced back at her furtively.

“What is it?” said Kate.