"I have not so long ploughed salt water as not to know something about ploughing the land," answered Jack; "don't you see the hay-seed still in my hair? Come, come, Mr Crupper, the horses will carry us along the roads without coming down on their knees at a decent pace, and if you like to take the sum I offer, we'll have them, if not, we will soon go and seek another dealer who is not so ready to pass off his broken-kneed beasts on poor ignorant `Jack-tars.'" The dealer, seeing that Jack was not to be taken in, at length agreed to the price offered. In a short time, with their valises strapped to their saddles, their pistols in their holsters, with serviceable swords by their sides, the travellers took their way towards London. In those days not a few highwaymen beset the roads, especially those leading from the chief naval ports to London, as they were pretty certain of finding seamen and officers travelling up and down--those travelling towards the metropolis, generally with an ample supply of cash in their pockets. Hounslow Heath, over which they had to pass, was one of the spots most frequented by those knights of the highway. It did not matter much that the horses possessed but little speed, as De Mertens, not having ridden for so many years, was unable to proceed at a fast rate; and even Jack found that it was far pleasanter not to attempt going as fast as he would once have wished to have gone over the road. They were therefore obliged to sleep at an inn about half-way between Portsmouth and London, hoping to get into the big city at an early hour the next day. Jack's chief puzzle was to know where to find a lodging. As may be supposed, he had no fancy to go back to the only one he knew of at Hammersmith, although on their way they should pass not far from it. He felt very sure, however, that he might do so without any risk of being discovered, for instead of the rosy-cheeked lad he then was, he now wore a full black beard, while his countenance was thoroughly well bronzed, and there was a bold, dashing look about him which often marked the naval officer of those days who had seen hard service. As De Mertens had no wish to remain in London, they agreed to pass through the city, and to stop for the night at Hertford, or some other town to the north of it. On passing across Hounslow Heath they encountered more than one suspicious-looking gentleman, armed to the teeth, and mounted on a strong active horse. But probably Jack's appearance made the highwayman, if such he was, think it more prudent to allow the travellers to pass unquestioned. That sort of gentry, even in those days, in spite of all their boasting, were generally cowards at heart, and took good care not to attack those whom they did not feel sure they could intimidate or overcome without difficulty.