Nevertheless, he spent the rest of the twilight and the early evening in fruitlessly wandering through the one long thoroughfare of the town, until it merged into the bosky Alameda, or spacious grove, that connected it with Santa Luisa. By degrees his chagrin and disappointment were forgotten in the memories of the past, evoked by the familiar pathway. The moon was slowly riding overhead, and silvering the carriage-way between the straight ebony lines of trees, while the footpaths were diapered with black and white checkers. The faint tinkling of a tram-car bell in the distance apprised him of one of the few innovations of the past. The car was approaching him, overtook him, and was passing, with its faintly illuminated windows, when, glancing carelessly up, he beheld at one of them the profile of the face which he had just thought he had lost forever!

He stopped for an instant, not in indecision this time, but in a grim resolution to let no chance escape him now. The car was going slowly; it was easy to board it now, but again the tinkle of the bell indicated that it was stopping at the corner of a road beyond. He checked his pace,—a lady alighted,—it was she! She turned into the cross-street, darkened with the shadows of some low suburban tenement houses, and he boldly followed. He was fully determined to find out her secret, and even, if necessary, to accost her for that purpose. He was perfectly aware what he was doing, and all its risks and penalties; he knew the audacity of such an introduction, but he felt in his left-hand pocket for the sprig of fern which was an excuse for it; he knew the danger of following a possible confidante of desperadoes, but he felt in his right-hand pocket for the derringer that was equal to it. They were both there; he was ready.

He was nearing the convent and the oldest and most ruinous part of the town. He did not disguise from himself the gloomy significance of this; even in the old days the crumbling adobe buildings that abutted on the old garden wall of the convent were the haunts of lawless Mexicans and vagabond peons. As the roadway began to be rough and uneven, and the gaunt outlines of the sagging roofs of tiles stood out against the sky above the lurking shadows of ruined doorways, he was prepared for the worst. As the crumbling but still massive walls of the convent garden loomed ahead, the tall, graceful, black-gowned figure he was following presently turned into the shadow of the wall itself. He quickened his pace, lest it should again escape him. Suddenly it stopped, and remained motionless. He stopped, too. At the same moment it vanished!

He ran quickly forward to where it had stood, and found himself before a large iron gate, with a smaller one in the centre, that had just clanged to on its rusty hinges. He rubbed his eyes!—the place, the gate, the wall, were all strangely familiar! Then he stepped back into the roadway, and looked at it again. He was not mistaken.

He was standing before the porter's lodge of the Convent of the Sacred Heart.

CHAPTER V.

The day following the great stagecoach robbery found the patient proprietor of Collinson's Mill calm and untroubled in his usual seclusion. The news that had thrilled the length and breadth of Galloper's Ridge had not touched the leafy banks of the dried-up river; the hue and cry had followed the stage-road, and no courier had deemed it worth his while to diverge as far as the rocky ridge which formed the only pathway to the mill. That day Collinson's solitude had been unbroken even by the haggard emigrant from the valley, with his old monotonous story of hardship and privation. The birds had flown nearer to the old mill, as if emboldened by the unwonted quiet. That morning there had been the half human imprint of a bear's foot in the ooze beside the mill-wheel; and coming home with his scant stock from the woodland pasture, he had found a golden squirrel—a beautiful, airy embodiment of the brown woods itself—calmly seated on his bar-counter, with a biscuit between its baby hands. He was full of his characteristic reveries and abstractions that afternoon; falling into them even at his wood-pile, leaning on his axe—so still that an emerald-throated lizard, who had slid upon the log, went to sleep under the forgotten stroke.

But at nightfall the wind arose,—at first as a distant murmur along the hillside, that died away before it reached the rocky ledge; then it rocked the tops of the tall redwoods behind the mill, but left the mill and the dried leaves that lay in the river-bed undisturbed. Then the murmur was prolonged, until it became the continuous trouble of some far-off sea, and at last the wind possessed the ledge itself; driving the smoke down the stumpy chimney of the mill, rattling the sun-warped shingles on the roof, stirring the inside rafters with cool breaths, and singing over the rough projections of the outside eaves. At nine o'clock he rolled himself up in his blankets before the fire, as was his wont, and fell asleep.

It was past midnight when he was awakened by the familiar clatter of boulders down the grade, the usual simulation of a wild rush from without that encompassed the whole mill, even to that heavy impact against the door, which he had heard once before. In this he recognized merely the ordinary phenomena of his experience, and only turned over to sleep again. But this time the door rudely fell in upon him, and a figure strode over his prostrate body, with a gun leveled at his head.