It was late in the afternoon in the spring of the year 1630; the hilltops of the south of Scotland were covered with masses of cloud, and a fierce wind swept the driving rain before it with such force that it was not easy to make way against it. It had been raining for three days without intermission. Every little mountain burn had become a boiling torrent, while the rivers had risen above their banks and flooded the low lands in the valleys. The shades of evening were closing in, when a lad of some sixteen years of age stood gazing across the swollen waters of the Nith rushing past in turbid flood. He scarce seemed conscious of the pouring rain; but with his lowland bonnet pressed down over his eyes, and his plaid wrapped tightly round him, he stood on a rising hummock of ground at the edge of the flood, and looked across the stream. "If they are not here soon," he said to himself, "they will not get across the Nith tonight. None but bold riders could do so now; but by what uncle says, Captain Hume must be that and more. Ah! here they come."