In this fashion, riding like madmen, they traversed the plateau and had almost begun the descent into the wady where they had spent the day, when a distant yell reached them. There was no need to look back, even if such a hazardous proceeding were warranted by their break-neck gait. They were discovered, but they were in front, and that counts for a good deal in a race. They tore down the hill, lumbered across the dried-up bed of a long-vanished torrent, and pressed up the further side. As they neared the ridge, four rifle shots rang out, and Dick saw three little spurts of dust and stones kick up in front on the right, while a white spatter suddenly shone on a dark rock to the left. "Faster!" he roared to Abdur Kad'r. "They cannot both ride and fire. In the next wady we shall be safe. Bend to it, my friend. Your reward will be great, and measured only by your haste in bringing me back to our camp." CHAPTER XVI A FLIGHT--AND A FIGHT Mrs. Haxton was no laggard in her hammock on the day after Royson's departure from the camp, but, early riser though she was, Irene was up and dressed when the older woman came to her tent and asked if she might have a word with her. In fact, Irene had not undressed at all the previous night. When she tore herself from Dick's arms, she hurried back to the oasis, it is true, but only to draw a chair out into the open, and sit there under the stars, dreaming the dreams of a girl to whom the heaven of love has just thrown wide its portals. Even the midnight chill did not drive her to bed. She closed the flap of her tent, lit a lamp, and tried to read, but the letters danced before her eyes. Instead of the scenes portrayed by the book, she saw three ghostly camels shuffling through stones and sand in the darkness, and, on one of them, the tall figure of the man whose parting words had filled her soul with honey sweetness. At last, weary with anxiety on his behalf, she threw herself, fully dressed, on her low-hung hammock, this being Mr. Fenshawe's clever device to protect European skins from the attacks of the insects that swarm in the desert wherever there is any sign of dampness. She slept a few fitful hours, and her first waking thought was a prayer for Dick's well-being. Then came Mrs. Haxton, and the girl received her with unaffected friendliness, being in the mood that demanded the sympathy she was prepared to offer to all who suffered. Her visitor was observant. Her woman's eyes noted that Irene was still attired in a muslin dinner dress, whereas she invariably wore a riding costume of brown holland or Assam silk in the morning. "My dear Irene," she said, "I hope you will not allow that stupid dispute of yesterday to worry you into sleepless nights." "But I have slept--quite a long time," was the girl's smiling disclaimer. "Well, now--let us consider. Mr. Royson left the camp about ten o'clock. A young lady who shall be nameless said good-bye to him half an hour later--"