But to resume! After supper—and a very fine one it was, too!—as usual, they sang their crooning lullaby songs until all except the sentry guards fell off in sleep.

Next morning, their strength renewed—rejuvenated, in fact—just as the golden lances of the sun came piercing through the fast dispersing clouds of night, they woke, ready and eager for any kind of work there might be to do. And certainly there was no shortage of employment. As soon as breakfast was over the Surveyors looked out their instruments and made ready to determine the limits and proportions of the intended city and grounds. Very clever fellows are the Surveyors. And yet all their skill is based upon a thorough grasp of a few simple facts. They know, that just as the alphabet is called the A B C, because in those letters are contained every line [[38]]and curve that is necessary to the formation of any of the other twenty-three letters; so, within the circle, ◯, the square, ◻, and the triangle, △, are to be found every line and curve, and every degree of measurement that can possibly be used in the laying out or building of anything in the world, from the Pyramids to a Modern Battleship!

Using the Magic Well as a centre from which to start, they first ran a line two miles due East, and a second one two miles due West. Returning, they did the like thing two miles North and two miles South. Then, just as a boy uses a piece of string tied to a stick stuck in the ground to draw a big ring in which to play marbles, so they, by means of a large number of pegs, made a circle exactly twelve miles in circumference, right round the base of the hill. In this way there was enclosed an area of ground that was precisely four miles across, no matter from what part of the outer edge the start was made.

As soon as the ring was clearly marked, a small army of Fairies were put to work all along its outer edge, digging out a trench twelve feet wide and four feet deep. Later on, this trench was made fifty-two feet wide and twelve feet deep. As the earth was taken out it was speedily removed by another army of fairy workmen and deposited on different parts of the Hill pointed out by the Prince’s Engineers, to be used later on in the making of lakelets, lily-pools, waterfalls, and all manner of delightful arbors, rose gardens, lavender beds, pansy plots, daffodil rings, and a thousand and one other altogether beautiful things meant for glorious display.

In the meantime, certain specially qualified engineers—who really belonged to the Cave Fairies, and therefore fully understood underground tunnelling and mining—having been persuaded by Prince Waratah to join his forces, were industriously directing the sinking of four great pits close beside the Magic Well. Each of these pits was situated directly under one of the lines running North, South, East and West. When they were sunken thirteen feet, sloping tunnels were begun, which tunnels, following exactly beneath the lines drawn on top, ultimately found an opening into the great trench on the rim of the circle two miles away. [[39]]

But, of course, none of this work went on without interruption. It was only a matter of a very few days, when the Desert Fairies, impelled by curiosity, came to see what was going on. The great trench, which, as you will have surmised, was being digged to form a circular lake, first attracted their attention. And very much it puzzled them. What it all meant they could not understand; but, true to their vicious instincts, they soon made up their minds to try and destroy it. This they sought to accomplish by blowing immense quantities of loose sand into the excavation; thereby making it necessary to do the work all over again.

If, for the future prevention of this wanton and dastardly outrage, no remedy could have been found, here was an end to the making of the Lake. But there were brains among the Prince’s Engineers, and one of them very cleverly constructed a most ingenious device for counteracting or stopping the flying sand. In a certain spot in one of the otherwise dry and sterile gorges, watered in some way not yet discovered, he had seen a very large number of bamboos growing. They were of all sizes; from the thickness of a lead pencil to the circumference of a man’s wrist; and being very sheltered from the wind, they were all extremely tall. Getting a huge quantity of them brought up from the gorge, he first had them cleared of inside pith so as to leave a free passage from end to end. Taking the thinner ones, he had tiny holes bored into them about half an inch apart. This done, he fitted them, straight up and down, into a frame of the thickest ones, twelve feet square. When a number of these squares had been so fitted, they were taken to the outside edge of the Trench, and there set up by means of props or stays, also made of bamboo. A long line of bamboo piping was then laid to each of the squares, and duly fitted into that portion of the frame which touched the ground.

As can be seen, all that was now needed, was a supply of water rushing through the pipes to burst through the holes—no bigger than those in a gas burner—to make a water sprayer of astonishing value in beating down every grain of sand that came against it.

Very ingenious also, was the way in which this feat was accomplished! An enormous basket-basin was first woven out of bamboo [[40]]leaves and thoroughly stiffened with beeswax. It was then set upon pillars, made with stones taken from the ground, right against the opening to the Well. In appearance it looked something like the high round tanks one sees at railway stations. There was this curious difference, however, that through the bottom of the basin bamboo pipes came down, and these were joined to the other pipes that were to take the water to the squares.

Now it has to be remembered, that when the trapdoor of the Magic Well was opened, the water shot upwards into the air. To permit of the basin being placed in position, and for other reasons, the door had been closed and the water shut off. To make it fall into the basin when it should be again released, a kind of stand-pipe, surmounted by a concave shield something the shape of a reaping hook, was so erected as to be behind and over the water as it would rise. The shield, like the basin, was made of waxed bamboo leaves.