"I suppose they must have wells. People must drink here, Jack." "I suppose there must be wells," Jack said doubtfully. "But, you see, the water in this lake is salt, and I should say they get no fresh water anywhere near, because the ground is so sandy. I rather expect they get it in small channels from the fresh-water canal." "Well, anyhow, we can get water there," Arthur Hill said. "I vote we go back there again. Not of course anywhere near where the Egyptians are; though I do not know whether that would make much difference, for we should be on one side of the canal and they on the other. Still, we had better go beyond them; then we can, as you say, keep ourselves going by picking maize or corn or whatever we can find for a day or two, till we hear the firing cease." "There are sure to be some boats somewhere on this lake," Jack said, "and we might get hold of one and go across to Alexandria some night, and reconnoitre. If we find there are no sailors or troops there, we can take to our boat and pull back again. I think it would be better to do that than to try to work round by the sea-shore, for I believe they have fortifications running across from the sea to the lake, so as to prevent the place from being attacked by a force landing beyond the forts." "Well, I vote we set out at once," Jim Tucker said. "I am frightfully thirsty. There are very few houses as far as I can see; if we keep a sharp look-out we ought to be able to manage so as not to meet anyone. If any peasant does run against us and ask questions, so much the worse for him." The others agreed, and they at once started across the country, which was only cultivated here and there. They laid their course so as to strike the canal at a point some miles higher up than that at which they had left it. They only saw a few peasants in the fields, and made detours so as not to come near any of these. On the way they picked a dozen heads of maize, but were too thirsty to attempt to eat them. After three hours' walking the vegetation became brighter and greener, the cultivated fields thicker, and in another half hour they stood on the bank of the canal. They went down to the edge, knelt down and took a long drink. "Shouldn't I like a dip!" Arthur Hill said. "We will have one, Arthur, when it gets dark; it would never do to bathe now. I do not see a soul about, but still someone might come up on the further bank at any moment, and our white skins would betray us at once. Now we have had a good drink we can hold on. We will go back again now, and sit down among the bushes and eat our corn." When they had finished their meal the boys agreed that maize eaten raw was not by any means desirable food; however, it satisfied their hunger, and they sat discussing their plans until evening. They agreed that Arthur Hill's plan was certainly the best.