At the moment while I was looking at him, Jack Jaikes with a full gunners' team came galloping across the yard with a four-inch Deventer quick-firing field-gun lurching after them. If once they could get that up to the doorway they might be able to make some efficient reply to the enemy's mortar. But a gun of that size needs some sort of emplacement, and an approach to the doorway must be contrived. Dennis was on the spot and I could hear him giving his orders in sharp, lapidary phrases. In the interest below me I had not been watching Rhoda Polly, and so the sharp report of her No. 27 startled me. Of course I could discern nothing in the huge black gash torn by the explosion. But Rhoda Polly was triumphant. "I got him," she whispered; "I saw him coming out and before he could get the shell into the muzzle, I fired. He dropped the shell and fell on top of it. What a pity it did not go off!" Such a bloodthirsty Rhoda Polly! But the truth was that, when it came to fighting and what she called "taking a hand," Rhoda Polly felt absolutely at one with the defence. She only strove to outdo those who were her comrades, and the matter of sex, never prominent in Rhoda Polly's mind, was altogether in abeyance. I tapped the keys of the Morse viciously. It was all I was good for. "Rhoda Polly has shot the gunner--now is your time!" But still the embankment for the four-inch did not quite please Dennis. He preferred to take his chance and wait. It seemed a long, weariful time. Rhoda Polly peered into the blackness along the tube of No. 27. Rhoda Polly wriggled and settled herself. "Bang!" said No. 27. "Winged him! But he made off!" said the marksman disgustedly. "He was quarrying under the other fellow for the shell, so they can't have many or he would have brought out a fresh one. I do wish father would hurry up. In a minute or two there will be such a beautiful chance--just before they are going to fire. They will send three or four men this next time so that I can't shoot them all. If our folk are not speedy, down will come this old clock-tower!" Rhoda Polly was a good prophet, and when next she spoke she had to report that there was a little cloud of men on either side, hiding behind the wall and preparing to load the piece, when their comrades were ready, at any hazard. The four-inch was now poking a lean snout out of the door which had been smashed open by the mortar, and stretched along, laying her on the centre of the darkness, was Jack Jaikes, cursing the Providence which had not given him eyes like Rhoda Polly's. "Now," said my mentor hastily, "tell them now is the time. They can't miss if they fire into the brown! Right in the centre of the gap in the line of that white chimney."