Shoulder to shoulder they threaded their way through the crowded market square, amid the clatter of sabots, the lowing of cattle, the incessant bleating of sheep. Ducks quacked from crates in wagons, geese craned white necks and hissed above the heads of the moving throngs; hogs squealed and grunted; fowls hanging by their legs from the red fists of sturdy peasant women squawked and flapped.

Cheap-Jack shows of all sorts encumbered the square and adjacent streets and alleys—gingerbread booths, shooting ranges, photograph galleries, moving-picture shows, theaters for ten sous. Through the lowing, bleating, and cockcrowing, the drumming and squeaking of Punch and Judy, and the brassy dissonance of half a dozen bands, mournful and incessant strains from several merry-go-rounds continued audible.

But the steady clatter of sabots on stony pavements, and the ceaseless undertone of voices, swelling, subsiding, dominated the uproar, softening the complaint of kine and feathered fowl to a softly cheerful harmony suggestive of summer breezes and green fields.

On the dusty Boulevard d'Athos—the typical solitary promenade of such provincial towns—there were, as usual, very few people—the inevitable nurses here and there, wheeling prams; a discouraged, red-trousered and sou-less soldier or two sprawling on benches under the chestnut trees; rarely a passing pedestrian, more often a prowling dog.

At the head of the Boulevard d'Athos, where the rue d'Auros crosses, Warner halted under the shade of the chestnuts, for the July sun was very hot. His unconvinced grey eyes now rested inquiringly on the young Englishman who had called himself Halkett. He said:

"What species of trouble are you in?"

Halkett shook his head.

"I can't tell you what the trouble is; I may only ask you to help me a bit—" The quick smile characteristic of him glimmered in his eyes again—a winning smile, hinting of latent recklessness. "I have my nerve with me, you see—as you Americans have it," he added. "You're thinking something of that sort, I fancy."

Warner smiled too, rather faintly, but remained silent.

"This is what I want you to do," continued Halkett. "I've a long thin envelope in my pocket. I'd like to have you take it from me and slip it into your breast pocket and then button your coat. Is that too much to ask?"