"Dios!" cried Don Sebastian, suddenly. "_The Cortes_ has started bombarding." Even as he spoke a bomb burst in the air directly over the Plaza. At once Gigedo gave the signal to the troops to march to the ramparts. In the distance they could hear the fierce cries of the rebels as they marched out of camp, and a tremour passed through the whole of the city as those within its walls recognised the desperate state of affairs. Bomb after bomb exploded with deafening noises, the troops manned the walls, the besiegers hurled themselves against the sea-gate and planted ladders against the walls. The assault had commenced. It was the beginning of the end. The full force at the disposal of General Gigedo, excluding the sick and wounded, amounted to some nine hundred men. He divided this into two portions: five hundred held the sea-facing portion of the town, four hundred were stationed at the inland gate. Xuarez attacked the two gates of the town simultaneously, and trusted, in the event of entering at either portal, to be enabled to attack the loyalists in the rear, and thus crush them between two armies. On the ramparts it was not so difficult to keep the foe back as it was below. They planted ladders, and these were hurled with their burden of climbing men into the ditch below. An incessant fusillade of musketry crackled along the walls, and the cannon with depressed muzzles hurled their balls with more or less damaging effect into the dense throng massed on the beach below. The bombs from _The Cortes_ did their deadly work skilfully, and the besiegers kept themselves as widely apart as possible, so as to neutralise the effect of the shells on compact masses. It was outside the sea-gate, however, that the siege was pressed most hardly. Xuarez had cannon planted at the gate, to break down, if possible, the huge wooden valves, clamped with iron. Through the loop-holes low down in the walls the besiegers fired incessantly, killing the rebel gunners as they strove to discharge the cannon. Above the city hung a thick cloud of grey smoke, and at intervals, through the misty veil, flared the red flame of a bomb bursting overhead. The rattle of musketry, the booming of cannon, the cries of the wounded, the shouts of besieged and besiegers, all made an infernal din deafening to the ear. Tim and Peter were at the land-gate in company with Captain Velez and Colonel Garibay, while Jack and Philip fought side by side in repelling the attack from the sea front. After an incessant cannonading lasting two hours, the rebels managed to smash the gates down with their artillery, and rushed in only to find themselves confronted by a dense mass of resolute soldiery.