The two had ridden direct to the range. As he followed the track, bending down in his saddle to note the marks, he laughed aloud. The men were the veriest fools at bush-craft. There were instances by the dozen which revealed to him the fact that neither had had any experience in tracking, and so had failed to avail themselves of the chances the ground they had ridden over offered to render their track difficult to follow. Where the ground was soft, they had not swerved to avoid it, but had left the prints of their horses' hoofs showing so clearly that to the skilled bushman it was as an open book he could read as he rode. Where low-growing shrubs stood in their way they had crashed through, sometimes setting their horses to jump what should have been ridden round. Everywhere the same thing was manifest. The riders were not bushmen; they were in a great hurry; they were in country with which they were not acquainted, and were hastening towards some landmark that would bring them to a locality where they would be more at their ease.
As he followed the track, he sat back in his saddle. There was no need to study the ground when he could see the hoof-prints showing right ahead. So it was that he saw what those other riders had failed to distinguish in the half light of the moon. There was a sudden dip in the surface, a shallow depression sloping down to a little stream. Riding, as they must have been riding, at a full gallop, it was a trap for an unsteady horse and one of the horses was unsteady, for it had propped at the brow of the slope, slipped, and come down on its knees, pitching its rider clear over its head.
The spot where he fell was still distinguishable by the bent and broken herbage and his heels had scored the ground as he scrambled to his feet, caught his horse, and hastily remounted. He had been in a great hurry and so had his companion, for there was no break in the tracks of the second horse—the other man had ridden on without a moment's halt, had ridden past his fallen companion and left him to do the best he could for himself. All this was plain at one glance. Again Durham laughed aloud at the folly of the pair, as he reined in his horse and sprang from the saddle.
In his fall the fugitive rider had dropped something. It lay white on the ground just beyond the mark he had made in falling. Durham picked it up—a closed, unaddressed envelope bearing the bank's impress on the flap.
He tore it open. Inside was a sheet of paper with the bank's heading, but undated.
"No one saw me go, and I am safe now where they will never find me. Stay there till you hear from me again. A friend will bring you word. Ask no questions, but send your answer as directed. You must do everything as arranged, or all is lost. Whatever you do, don't leave till I send you word. I am safe till the storm blows over.—C."
As Durham read the words, written in pencil and obviously in haste, he was satisfied that his suspicion not only of Eustace, but of Mrs. Eustace, was correct. The man with the yellow beard whom he himself had seen, was possibly the "friend," through whom communication was to be maintained between husband and wife. He and Eustace had evidently ridden in during the evening with the intention of advising Mrs. Eustace of the successful flight of her husband. Hesitating to approach the bank, until he was certain the way was clear, Eustace had given the note to his companion to deliver. Harding's vision of the face at the window completed the picture. The man had crept up to the window of the room where it was probably arranged Mrs. Eustace was to wait. So long as any other person who might have been in the room occupied the chair Mrs. Eustace placed, the shadow on the blind would warn the visitor that the coast was not clear. It was due to the fact that Harding had noticed the shadow and had moved to another chair that the man had so nearly been captured.
What had followed was equally clear to Durham's mind.
Directly he found he was discovered the man had run to his horse and, together with his companion, had galloped off, too quickly to allow him either to explain how he had failed to deliver the message or to hand it back to Eustace. It was most probably he who had come down with his horse at the edge of the depression, by which time the letter would have passed completely from his mind and so he would not notice its loss. Under the circumstances it was very unlikely he would tell the truth to his companion, but would rather leave Eustace under the impression that the letter had been put where Mrs. Eustace would find it. Sooner or later, therefore, Eustace would make another attempt to communicate with his wife. If he were not captured otherwise there would be every hope of securing him by keeping a close watch upon her.
With the letter in his pocket Durham remounted his horse and continued to follow the track. It led him into the broken country which formed the outlying spurs of the range, and continued along a narrow depression lying between two ridges. The trees grew closer together in the shelter of the little valley, and the track turned at right angles and continued up the side of one of the ridges.