Then he took his helmet and crossed the sand to Durrance's office. He lifted the latch noiselessly; as noiselessly he opened the door, and he looked in. Durrance was sitting at his desk with his head bowed upon his arms and all his letters unopened at his side. Calder stepped into the room and closed the door loudly behind him. At once Durrance turned his face to the door.

"Well?" said he.

"I have a paper, Colonel, which requires your signature," said Calder. "It's the authority for the alterations in C barracks. You remember?"

"Very well. I will look through it and return it to you, signed, at lunch-time. Will you give it to me, please?"

He held out his hand towards Calder. Calder took his pipe from his mouth, and, standing thus in full view of Durrance, slowly and deliberately placed it into Durrance's outstretched palm. It was not until the hot bowl burnt his hand that Durrance snatched his arm away. The pipe fell and broke upon the floor. Neither of the two men spoke for a few moments, and then Calder put his arm round Durrance's shoulder, and asked in a voice gentle as a woman's:—

"How did it happen?"

Durrance buried his face in his hands. The great control which he had exercised till now he was no longer able to sustain. He did not answer, nor did he utter any sound, but he sat shivering from head to foot.

"How did it happen?" Calder asked again, and in a whisper.

Durrance put another question:—

"How did you find out?"