The donkey—for such it was—made no attempt to stop. "That's Butterfly for a dead cert," commented Peter.

The man uttered an imprecation, jumped from the cart and tugged viciously at the animal's bridle. Then, by main force, he backed the donkey a short distance along the side track.

"Plenty o' time," Barcroft heard him remark. "Better an hour too early than five minutes too late."

"Awkward habit, expressing one's thoughts aloud," mused Peter. "I do it myself occasionally, and I know. Now, what are you doing with a loaded cart on this unfrequented road at this time of night? I scent a mystery. I'll wait an hour and see what happens. If nothing, then I will kick myself for being an inquisitive ass."

The pedlar was not going to be inactive. Unharnessing the donkey—Peter was now absolutely convinced that it was Butterfly—he led the animal to a patch of grass-land hidden from the road by the bushes, a task requiring considerable physical strength. This done he backed the cart from the path until the gorse hid it from the watcher's sight.

Ten long minutes passed. The pedlar, swinging his arms vigorously, for the night air was chilly, made no attempt to look up or down the road. The person or persons he expected were evidently not approaching from that direction. Presently he walked to the cart, removed something from under the tarpaulin—it was too dark to see what the article was—and set off along the side track.

At fifty yards he surmounted a steep rise and disappeared the other side. The sound of his footsteps, deadened by the nature of the soil, quickly died away.

"Now I'll investigate," decided Barcroft. "If he returns in a hurry there'll be trouble. Friend Pattercough looks like a quarrelsome card. However, I'll risk it."

He stole cautiously to the place where the donkey and cart stood. Butterfly, indifferent to the attentions of her lawful master, browsed steadily at the scanty herbage. The cart, although inanimate, was far more interesting. It was piled high with faggots and bundles of brushwood, a tarpaulin being tightly lashed over the top of the load. Mingled with the scent of the newly-cut wood was the faint odour of petrol.

Without the slightest hesitation Barcroft probed the load with his stick. The ferrule grated against metal—the side of a tin. Again and again he tried; the bottom of the cart was packed with petrol-cans.