“Bang!” The lock string had been jerked. The shell flew true; exploded in the very midst of the gateway battery.

It created a little panic. The Mexicans seemed to think that it had dropped from the sky. The belfry squad cheered and reloaded.

“Bang!”

The lieutenant occasionally changed to the roof-tops and sprinkled them with canister. He was enjoying himself immensely. So was Lieutenant Fry. Jerry likewise was glad that he had come. Below the belfry the whole battlefield was outspread. The church was almost directly south of the breastworks that had been taken and left again. The gateway—arched over between towers, was two hundred and fifty yards at the rear of the breastworks. It had mounted a heavy gun and a howitzer, emplaced behind sandbags and stone abutments and scoured the road with shell and canister and grape. The square towers and the parapets of the wall on either side of the gate were volleying with musketry; the roofs of the houses along the road gushed smoke. The figures of the Mexican defenders, lying flat or crouching, or stealing from point to point, could be plainly seen amidst smoke spume.

Up the street there were the Voltigeurs, supporting the howitzers and springing from arch to arch. Duncan’s battery, posted farther back but gradually coming nearer, was responding hotly to the Mexican battery. In the yards of the houses the skirmishers of the Fourth, and of the Second and Third Artillery, darted hither thither, picking off the Mexican sharpshooters before them; every now and then the burrowing squads burst out in a new spot.

Across the street the Clarke brigade was doing the same work. A second howitzer had been mounted upon a high roof over there, in rivalry with Lieutenant Grant’s howitzer. It, too, was dropping shells into the enemy.

And yonder, a mile and a half or two miles in the southeast at the Belen gate, the other battle was being waged, where the General Quitman column appeared to have gained a foothold.

The sun was touching the western horizon. The ammunition for the little howitzer was almost spent. But a great cheer arose from below. They gazed quickly. Drawn by galloping horses, the gunners astride and lashing, or sitting upon the caisson, a six-pounder from Duncan’s battery was charging down the road for the abandoned breastworks.

The city gate spouted flame and smoke afresh. Every Mexican musket, as seemed, was brought to bear upon the bounding, thundering gun. Would the gun make it—would it—would it? The two lead horses were fairly lifted from their feet by the canister; the other two horses dragged them, a mass of mangled flesh. The gunners astride had been hurled from their seats; the caisson showed gaps, as the gunners sitting upon it wilted. Down sprawled the horse of the young officer who commanded. He staggered to his feet and ran on. An instant more and the gun was safely within the shelter of the battery parapet—was being unlimbered and turned muzzle to muzzle with the gateway guns.

Of the nine artillerists, five were out of action.