"During some operations in the desert it was necessary for my troop to follow up a small party of rebels mounted on camels, which, as you probably know, can go without water much longer than horses. We were almost within striking distance, when our horses completely gave out, but I luckily noticed indications which showed that there was water beneath a portion of the plain much below the general level. Half an hour's spade work proved that I was right. We took up the pursuit again, and ran the quarry to earth, and I got my captaincy."

"Was there no fight?"

He paused an appreciable time before replying. Then he evidently made up his mind to perform some disagreeable task. The watching girl could see the change in his face, the sharp transition from eager interest to angry resentment.

"Yes," he went on at last, "there was a fight. It was a rather stiff affair, because a troop of British cavalry which should have supported me had turned back, owing to the want of water already mentioned. But that did not save the officer in charge of the 24th Lancers from being severely reprimanded."

"The 24th Lancers!" cried Iris. "Lord Ventnor's regiment!"

"Lord Ventnor was the officer in question."

Her face crimonsed. "Then you know him?" she said.

"I do."

"Is he your enemy?"

"Yes."