The _Trent_ had come out as a mother ship to these two unusual men-of-war, and from the moment of their arrival, she became an active arsenal for the further arming and protection of her charges. Many tons of plating were laid over their vulnerable portions--the steering gear, magazines, navigating bridges, etc., having to be specially considered. The gun shields were increased in size, and every precaution taken to protect the gunners from rifle fire. Where plating could not be added, sandbags were employed. By these means the danger of the ship being incapacitated, or the crew being disabled by what the enemy could do from the bank, was reduced to a minimum. These precautions would not, of course, have been a complete protection against continuous hitting by the plunging fire of _Koenigsberg’s_ artillery. The more difficult job was to protect the ships against mines and torpedoes. Their first and best protection, of course, was their shallow draught. But it was not left at that; and most ingenious devices were employed which would have gone a fair way to keep the ships floating even had an under-water mine been exploded beneath the bottom. At intervals, between these spells of dockyard work, the monitors were taken out for practice in conjunction with the aeroplanes. Mafia Island, which had already served as a dockyard and aerodrome, was now once more to come in useful as a screen between the monitors and the target. The various operations necessary for indirect fire were carefully studied. Gun-layers, of course, cannot aim at a mark they cannot see. The gun, therefore, has to be trained and elevated on information exteriorly obtained, and some object within view--at exactly the same height above the water as the gun-layer--has to be found on which he is to direct his sight. The gun is now elevated to the approximate range, a shot is fired and the direction of the shot and the distance upon the sight are altered in accordance with the correction. At last a point of aim for the gun-layer, and a sight elevation and deflection are found, and his duty then is to fire away, aiming perhaps at a twig or a leaf a few hundred yards off, while the projectile he discharges falls upon a target four, five, or even six miles off. THE FIRST ATTEMPT At last all was ready for the great attack. The crew had all been put into khaki, every fitting had been cleared out of the monitors; they had slipped off in the dark the night before and were anchored when, at 3:30 in the morning, all was ready. I will now let a participant continue the story: