Jimmie sat for a long time in blissful reverie. "He's getting there!" he whispered to himself. "He'll get the big cases yet, and I can keep my first place. I must see Jane to-night and tell her." Meanwhile, back at Tinsdale improvements had been going on at the Carsons'. Bob, always handy with tools, had been putting in a tank over the bathtub. They had one at the house on the hill, only it was run by a windmill. Bob had a friend who was a plumber's son, and from him had obtained some lengths of second-hand water-pipe and an old faucet. He had conceived the idea of a tank on the roof, and his first plan had been only a rainwater tank, but gradually as his vision widened he included a force pump in the outfit of desires. He hung around the plumber's until they unearthed an old force pump somewhat out of repair, and for a few days' assisting the plumber Bob acquired it, together with after-hour help to put it into operation. The next object was a tank, which seemed at first to represent the impossible; but the grocer at last offered a suggestion in the shape of several large empty hogsheads which he readily accepted at the price of four Saturdays' work in the store. All Bob's extra time was put into these improvements, and he was as excited every night when it grew dark and he was forced to come to supper because he couldn't see any longer to work, as if he had been building an airship. The day the hogsheads were marshaled and connected and the force pump sent its first stream into them was a great occasion. The family assembled in the yard, with Elise Hathaway, who had been allowed to come over for a few minutes with Betty. Bob and his plumber friend pumped, and Emily climbed to the attic window, which overlooked the row of hogsheads, ranged so that the water would flow from one to the other, and acted as pilot to the new enterprise. As the first stream from the force pump, which Bob had lavishly painted red, crept its way up the pipes and began to wet the bottom of the first and highest hogshead Emily gave a little squeal of delight and shouted "It's come! It's come! The water's come!" and the family below fairly held their breath with the wonder of it. Not that such a thing could be, but that their own freckled, grinning Bob should have been able to achieve it. There was an elaborate system of tin conductors which conveyed the waste water from the bathtub out through a hole in the wall of the little laundry bathroom, and distributed it along the garden beds wherever its controller desired to irrigate. Thus the system became practical as well as a luxury. There was also an arrangement of gutter pipes for carrying off any surplus water from the hogsheads, so saving the Carson house from possible inundation at any time of heavy storms.