William Barrett, however, was of another mind. He had liked John--he had put full faith in him, he had appreciated his practical abilities, and the good work he did, and his power of managing men, and had been disposed to look indulgently upon any theories or plans he might have. This was all the length his mind had gone when John spoke to him first of that scheme for draining the Thames Valley. He had smiled at it very good-humouredly--he had said to himself that when boys do take up an idea it is generally a magnificent one, but that it is better even to plan something on a ridiculously gigantic scale than to think of nothing at all. He was prepared, indeed, to get some amusement out of John’s Thames Valley. Perhaps there might be something in it, some idea which a maturer brain could work out. There was no telling, but at all events it would be worth looking at for the fun of it, if nothing more: a youth of that age, with no experience to speak of, tackling a business which had baffled the wisest! But it was like a boy to do so. Fools rush in--or at least pupils rush in--where engineers sometimes fear to tread. So he looked forward with amused expectation to the production of John’s scheme. But when Prince told him that story of Spender & Diggs, the scheme took a different aspect in Mr. William Barrett’s eyes. It gained an importance, a reality which nothing else could have given it. He did not smile at the idea of this absurd youthful plan as presented to the rival office. It became immediately a serious matter; a project of the greatest importance. All at once it became possible, very likely, that the other firm, who had nothing to do with John, might be about to reap all the benefit of him, and to enter upon the greatest engineering work that had been attempted for years, through this boy at whose plans ‘Barretts’ had smiled. William Barrett had no inclination to smile now. It was deadly earnest by this time: and he could not but feel sure in the natural certainty of events that this scheme which he had pooh-poohed would be seen in its true light by the others, and would make the fortune of Spender & Diggs.