The assembly dispersed, and the work on the canal was resumed with a view of making it deeper. In the course of a year the excavation was completed, and all was made ready for a new trial. Claudius summoned a new assembly to witness the operation, and at this time, instead of a naval conflict, he made provision for a great combat of gladiators, to be fought on immense floating platforms which were built upon the lake near the outlet which the engineers had made. In the end, however, the second attempt to make the water flow, proved more unfortunate than the first. The channel had been made very deep and wide, so that the water was inclined to move, when once put in motion, with the utmost impetuosity and force; and it so happened, that in some way or other, the means which the engineer had relied upon for controlling it were insufficient, and when the gates were opened every thing suddenly gave way. The water rushed out in an overwhelming torrent, as in an inundation--and undermined and carried away the platforms and stagings which had been erected for the seats of the spectators. A scene of indescribable tumult and confusion ensued. The emperor and empress, with the guests and spectators, fled precipitously together, and all narrowly escaped being carried down into the canal. It is by no means difficult to imagine what sort of a character a boy must necessarily form, brought up under such influences and surrounded by such scenes as those which thus prevailed at the court of Claudius. It proved in the end that Nero experienced the full effect of them. He became proud, vain, self-willed, cruel, and accustomed to yield himself without restraint to all those wicked propensities and passions which, under such circumstances, always gain dominion over the human soul. * * * * * Besides Britannicus, it will be recollected that Messalina had left another child,--a daughter named Octavia, who was two or three years younger than her brother, and of course about five years younger than Nero. Agrippina did not pursue the same course of opposition and hostility toward her which she had adopted in regard to Britannicus. She determined, at the outset, upon a very different plan. Britannicus was necessarily a rival and competitor for Nero; and every step in advance which he should make, could not operate otherwise than as an impediment and obstacle to Nero's success. But Octavia, as Agrippina thought, might be employed to further and aid her designs, by being betrothed, and in due time married, to her son.