“Bill, old man, come here a minute. I’ve something to say.”

Bill looked up, nodded, moved a couple of soldiers, and got up. He came to Kirk’s side. His chosen mode of progression at this time was a kind of lurch. He was accustomed to breathe heavily during the journey, and on arrival at the terminus usually shouted triumphantly.

Kirk put an arm round him. Bill stared gravely up into his face. There was a silence. From outside came a sudden rumbling crash. Bill jumped.

“Funder,” he said in a voice that shook a little.

“Not afraid of thunder, are you?” said Kirk.

Bill shook his head stoutly.

“Bill.”

“Yes, daddy?”

Kirk fought to keep his voice steady.

“Bill, old man, I’m afraid you won’t see me again for some time. I’m going away.”