A groom mounted the other, and once more a start was made, but they had not gone more than a few steps, when the groom's horse fell heavily, and rolled over on its side, pinning the unfortunate man beneath him.
There was a shriek of agony. In an instant Duff was off his horse and at the head of the fallen animal.
“Medical officer here!” he shouted. “Now then, two of you men. One of you pull out that man while we lift.”
The horse's head and shoulders were lifted clear, and the injured man was pulled out of danger.
“Take him out of the way, please, doctor,” said Duff, to the M. O., who was examining the groom.
“Sergeant!”
His sergeant literally sprang to his side.
“Get me a dozen bags,” he said.
“Bags, sir? I don't know where—”
“Bags,” repeated Duff savagely. “Canvas, anything to wrap around these horses' feet.”