"More likely by one of our heavy shells," declared Captain Nicholson. "If your theory is correct, how do you account for the fact that those staff officers in the next dug-out came off scot-free until Joliffe thought fit to bring trouble on them and us? No, stay where you are, Joliffe!" he exclaimed, as the bomber's voice was heard shouting his intention of "barracking in". "We'll come back and fetch the pair of you when we've found a way out. Now, boys, let's see how the land lies."