The weather was keen, the air was filled with floating rime, which shimmered and sparkled in the sunshine, and Jimmy's garments were covered with it, but, plodding disconsolately on and on, his heart heavy with the tragedy and his thoughts filled with Bobby and the happy years of comradeship that were ended, he did not feel or heed the cold or dazzling glitter of the snow, until in mid-afternoon his eyes began to trouble him, and he realized that snow-blindness was threatening.