“Of course not,” replied the elder. “Nothing that anybody could say in a lifetime could equal that demonstration of power. Nobody that ever lived could put this wonderful river into words. I have told you fellows only of the good it has done--only of its beneficence. You see now what power of malignity and destructiveness it has. This single flood has already destroyed hundreds of lives and swept away scores and hundreds of homes, and obliterated millions of dollars’ worth of property. Before it is over the hundreds in each case will be multiplied into thousands. Even now, right here at Cairo, a great disaster impends. Every able-bodied man in the town has been sent with pick or shovel or wheelbarrow to work night and day in strengthening and raising the levees. There are ten thousand people in this town. With the Mississippi on one side and the Ohio on the other, and with their floods united across country above the town, these helpless people have nothing in the world but an embankment of earth between them and death. Their homes lie from twenty to thirty feet below the level of the water that surrounds them on every side. And that level is rising every hour, every minute. It is already several inches above the top of their permanent levees. The flood is held in check only by a temporary earthwork, built on top of the permanent one. It is no wonder that the embankments are ablaze with torches and that a thousand men are working ceaselessly by night and by day to build the barriers higher.” “What if a levee should break?” asked Will, in awe. “Ten thousand people would be drowned in ten minutes,” answered Phil, who had been studying the matter even more closely than Ed had done. “Cairo lies now in a triangle, with the floods on all three sides. If the levee should give way at any point on any side, Niagara itself would be a mere brook compared with the torrent that would rush into the town. One of the engineers said to me to-day that the pressure upon the levees at this stage of water amounts to thousands of millions of tons. Should there be a break at any point, it would give to all this ocean of water a sudden chance to fall thirty feet or so. Now think what that would mean! The engineer, when I asked him, answered,--‘Well, it would mean that in ten minutes the whole city of Cairo would be swept completely off the face of the earth. Not only would no building be left standing in the town, but there would be literally not one stone or brick left on top of another. Indeed, the very land on which the city stands, the entire point, would be scooped out fifty feet below its present level and carried bodily away into the river. The site of the town would lie far beneath the surface of the water.’” “And all this may happen at any moment now?” asked Constant. “Yes,” said Phil. “But it is not likely, and brave men are fighting with all their might to prevent it. Let us hope they will succeed.” “Why do people live in such a place?” asked Will.