The innkeeper nodded hesitantly.

“Yesterday morning I saw the tracks of a mountain lion. If you like, we will go out and see what we can find.”

An hour later Intuccio halted his horse in an arroyo two miles away. He laid a rifle across Urselli’s saddlebow. “You will wait here,” he said. “We go round the other side of the mountain and drive him down.”

Urselli’s glance flickered at him.

“How long do I wait?”

The innkeeper shrugged.

“Perhaps three hours, perhaps four. It is a long way. But if we find him, he will come down here.” He turned calmly to the Saint. “Andiamo, signor!”

Simon was contented enough to follow him. Intuccio set a tiring trot, but it was easy for the Saint, who was as iron-hard as he had ever been. A coppery sun baked the air out of a sky of brilliant unbroken blue, one of those subtropical skies that are as flat and glazed as a painted cyclorama. Little whirls of dust floated up behind them as they rode, dancing a phantom veil dance to the irregular tom-tom of swinging hoof beats. Intuccio made no conversation, and Simon was left to ruminate over his own puzzle. To be out under the blazing daylight in that ridged and castled wilderness of mighty boulders piled against steep scarps of rock, with such an enigma on his mind, gave him the exact opposite of the feeling which he had had the night before. Then he had been a spectator; now he was an actor, and he was ready, as he always was, to enjoy his share in the play.

Three hours later, as they rode down the barren slopes again toward the place where they had left Urselli, he felt very much at peace. He had settled quite a number of things in his own mind during the ride, and about Amadeo Urselli’s own exact position in the cosmic scale he had removed all doubts even before they set out. He knew the rats of the big cities too well to be mistaken about Amadeo.

But the setting for the encounter was what made it so ineffably superb. To have met him in the city would have been ordinary enough, but to meet the city gunman out here in the great open spaces was a poem which only the Saint’s impish sense of humor could realize to the full.