At the end of five weeks the boat was finished and nothing remained but to take in fuel, torpedoes, gun, and ammunition, and carry out the final engine and diving tests before returning to the welcoming bosom of the _Parentis_. A copy of the programme to be carried out in the way of tests was submitted to, and approved by, the Senior Naval Officer, and the boat took in her fuel and war machines without further delay. On the morrow the engine trials were to take place, and the ship’s company paused and drew breath before the final struggle. At an early hour the following morning Seagrave left the hotel _en route_ for the dockyard, and by eight o’clock ‘123’ had been tied up to the quay-wall as if she were never intended to leave the all-embracing docks of Darlton. The Engineer Commander and Raymond put in an appearance by the time all was ready, and the worthy Hoskins and his staff were very much in evidence. A final inspection and polish up were made, and then the motors were started and the engine clutches forced home. There was the usual fizz and bump as the exhausts coughed out the initial clouds of white smoke and the explosions became quicker and quicker. The port engine got well away, but after a manful effort the chugging of the starboard Diesel wavered and dragged and stopped altogether. ‘123’ had surged forward when the screws began to revolve, and was tugging at her mooring ropes like a terrier on a lead, in spite of the fact that only half her power was under weigh. But the ropes held her, and presently Hoskins’s face appeared up the engine-room hatch shouting an explanation through the din made by the well-behaved port engine. After a couple of false starts, during which time the Engineer Commander and the E.R.A. gravely combated over her behaviour (blood brothers for the moment), the trouble was rectified, and the defaulter made good her character. Full speed was slowly worked up to, and the boat lay to the quay with her propellers turning at many revolutions a minute. Presently the Commander took himself off, and even Raymond was satisfied when the worthy Hoskins, who held in great scorn all dockyard work, pronounced that ‘though they ’aven’t done wot they ought to ’ave, wot they ’ave done ain’t bad.’ The test took the greater part of the day, and it was arranged that the diving trial should take place on the morrow. This would be the supreme test, when all the work of the re-fit would be put to the proof, and several of the dockyard officers and contractors’ people were to come down in the boat to see it carried out. Raymond was rather pleased about it, although he hated passengers, for, as he put it himself: ‘It brings it home to those beggars far more if they’re in the boat when anything goes wrong than if we just come in and tell ’em about it afterwards.’