He told her how one spring, walking across a common, after a fire, he had found a mother thrush burnt to death upon her nest, her charred wings spread out in a vain endeavour to protect her brood. He had buried her there among the blackened thorn and furze, and placed a little cross of stones above her. And she had promised him. He needed her. The words she had spoken to Madge, not dreaming then of their swift application. They came back to her. “God has called me. He girded His sword upon me.” What right had she to leave it rusting in its scabbard, turning aside from the pathway pointed out to her because of one weak, useless life, crouching in her way. It was not as if she were being asked to do evil herself that good might come. The decision had been taken out of her hands. All she had to do was to remain quiescent, not interfering, awaiting her orders. Her business was with her own part, not with another’s. To be willing to sacrifice oneself: that was at the root of all service. Sometimes it was one’s own duty, sometimes that of another. Must one never go forward because another steps out of one’s way, voluntarily? Besides, she might have been mistaken. That picture, ever before her, of the woman pausing with the brush above her tongue—that little stilled gasp! It may have been but a phantasm, born of her own fevered imagination. She clung to that, desperately.!

“It is breakfast time,” he explained, as they emerged into the air. “We leave each other alone for half an hour—even the snipers. But we must be careful.” She followed in his footsteps, stooping so low that her hands could have touched the ground. They had to be sure that they did not step off the narrow track marked with white stones, lest they should be drowned in the mud. They passed the head of a dead horse. It looked as if it had been cut off and laid there; the body was below it in the mud. “No, dear,” he answered, “if you wish it.”

“Do you think you will go on doing it?” he asked, with a laugh. CHAPTER XVIII He struck a match and held it for her. Joan sat with her elbows on the table and smoked in silence. She was thinking.