mighty for safety or for destruction, although as yet I have applied it only to the blissful operation of lifting water, thus removing the curse of it where it is a curse, and carrying it where the parched soil cries for its help to unfold the treasures of its thirsty bosom.  My fire-engine shall yet uplift the nation of England above the heads of all richest and most powerful nations on the face of the whole earth.  For when the troubles of this rebellion are over, which press so heavily on his majesty and all loyal subjects, compelling even a peaceful man like myself to forsake invention for war, and the workman’s frock which I love, for the armour which I love not, when peace shall smile again on the country, and I shall have time to perfect the work of my hands, I shall present it to my royal master, a magical supremacy of power, which shall for ever raise him and his royal progeny above all use or need of subsidies, ship-money, benevolences, or taxes of whatever sort or name, to rule his kingdom as independent of his subjects in reality as he is in right; for this water-commanding engine, which God hath given me to make, shall be the source of such wealth as no accountant can calculate.  For herewith may marsh-land be thoroughly drained, or dry land perfectly watered; great cities kept sweet and wholesome; mines rid of the water gathering from springs therein, so as he may enrich himself withal; houses be served plentifully on every stage; and gardens in the dryest summer beautified and comforted with fountains.  Which engine when I found that it was in the power of my hands to do, as well as of my heart to conceive that it might be done, I did kneel down and give humble thanks from the bottom of my heart to the omnipotent God whose mercies are fathomless, for his vouchsafing me an insight into so great a secret of nature and so beneficial to all mankind as this my engine.’

With all her devotion to the king, and all her hatred and contempt of the parliament and the puritans, Dorothy could not help a doubt whether such independence might be altogether good either for the king himself or the people thus subjected to his will.  But the farther doubt did not occur to her whether a pre-eminence gained chiefly by wealth was one to be on any grounds desired for the nation, or, setting that aside, was one which carried a single element favourable to perpetuity.

All this time they had been standing on the top of the keep, with the moonlight around them, and in their ears the noise of the water flowing from the dungeon well into the sky-roofed cistern.  But now it came in diminished flow.

‘It is the earth that fails in giving, not my engine in taking,’ said lord Herbert as he turned to lead the way down the winding stair.  Ever as they went, the noise of the water grew fainter and the noise of the engine grew louder, but just as they stepped from the stair, it gave a failing stroke or two, and ceased.  A dense white cloud met them as they entered the vault.