The fog had rolled off now, and it was clear astern, though a thick bank still hung over the river ahead, but this was rapidly melting away; and the bargeman, who told them his name was Will Atkins, pointed out a large building low down on the water ahead.

"That's Sheerness Fort," he said. "You can lend Jack a hand to get up the topsail. The wind is rising every minute, and we shall soon be bowling along hand over hand."

Both ahead and astern of them were a line of barges, which had, like the Sarah and Jane, anchored when the fog was thickest, and were, like her, making their way to Sheerness. The wind was blowing briskly now, and the barge made her way through the water at a rate which surprised the boys.

"I had no idea that barges sailed so fast," George said.

"There are not many craft can beat them," Atkins replied. "With a breeze so strong that they can only just carry their topsails, they will hold their own with pretty nigh anything afloat. There are mighty few yachts can keep alongside us when we are doing our best."

As Atkins had predicted, in little over an hour they brought up just inside the mouth of the Medway, and dropped the anchor to wait till the tide turned to help them up to Rochester. At six o'clock they were again under way. The wind had fortunately veered round somewhat to the north of west, and they were able for the most part to lay their course, so that soon after seven they were abreast of the dockyard, and a few minutes later dropped anchor off Rochester.

"Jump into the boat, boys," the good-natured bargeman said; "I will put you ashore at once. There is the station close to the end of the bridge."

With many very hearty thanks for his kindness the lads jumped ashore and hurried up to the station. They found that there would be a train in half an hour, and by nine o'clock they arrived in town.

Before they had landed the bargeman had scrawled on a piece of paper, "Your boat was picked up by the Sarah and Jane. Will bring her back on return trip. No damage done. William Atkins." This he had handed to the boys, and they now got an envelope and directed it to "James Kitson, Waterman, Gravesend," and posted it, and then set out to walk home.

"It's not been the sort of day we expected," George said; "but it's been good fun, hasn't it?"