"But perhaps that's because the paint's off her sides and the ropes all worn and loose," Geoffrey suggested.

But Master Lirriper waved the suggestion aside as unworthy even of an answer, and repeated, "She knows it. Anyone can see that with half an eye."

Geoffrey and Lionel talked the matter over when they were sitting together on deck apart from the others. It was an age when there were still many superstitions current in the land. Even the upper classes believed in witches and warlocks, in charms and spells, in lucky and unlucky days, in the arts of magic, in the power of the evil eye; and although to the boys it seemed absurd that a vessel should have life, they were not prepared altogether to discredit an idea that was evidently thoroughly believed by those who had been on board ships all their lives. After talking it over for some time they determined to submit the question to their father on their return.

It took them two more tides before they were off Sheerness. The wind was now more favourable, and having increased somewhat in strength, the Susan made her way briskly along, heeling over till the water ran along her scuppers. There was plenty to see now, for there were many fishing-boats at work, some belonging, as Master Chambers told them, to the Medway, others to the little village of Leigh, whose church they saw at the top of the hill to their right. They met, too, several large craft coming down the river, and passed more than one, for the Susan was a fast boat.

"They would beat us," the skipper said when the boys expressed their surprise at their passing such large vessels, "if the wind were stronger or the water rough. We are doing our best, and if the wind rises I shall have to take in sail; while they could carry all theirs if it blew twice as hard. Then in a sea, weight and power tell; a wave that would knock the way almost out of us would hardly affect them at all."

So well did the Susan go along, that before the tide was much more than half done they passed the little village of Gravesend on their left, with the strong fort of Tilbury on the opposite shore, with its guns pointing on the river, and ready to give a good account of any Spaniard who should venture to sail up the Thames. Then at the end of the next reach the hamlet of Grays was passed on the right; a mile further Greenhithe on the left. Tide was getting slack now, but the Susan managed to get as far as Purfleet, and then dropped her anchor.

"This is our last stopping-place," Joe Chambers said. "The morning tide will carry us up to London Bridge."

"Then you will not go on with to-night's tide?" Geoffrey asked.

"No; the river gets narrower every mile, and I do not care to take the risk of navigating it after dark, especially as there is always a great deal of shipping moored above Greenwich. Tide will begin to run up at about five o'clock, and by ten we ought to be safely moored alongside near London Bridge. So we should not gain a great deal by going on this evening instead of to-morrow morning, and I don't suppose you are in a particular hurry."

"Oh, no," Lionel said. "We would much rather go on in the morning, otherwise we should miss everything by the way; and there is the Queen's Palace at Greenwich that I want to see above all things."