"I have some. Do you mean to tell me, Hippy Wingate, that an old campaigner like yourself has drunk up all the water he had in his canteen, and in the face of a great drouth?" demanded Grace, trying hard not to smile.

"Every last drop of it," admitted Hippy. "But what's a fellow to do when he is thirsty and his throat is cracking open?"

"Use the precious stuff sparingly. Here! Take a sip from my canteen. Only a sip, Lieutenant."

With the eyes of the entire party on him, Hippy dared not take more than enough water to moisten his throat. Grace then took the canteen from him, passing it to Emma.

"The same holds good for you, Emma," she said, "Take a sip and pass it along. What water is there may have to be our only supply all the rest of the afternoon."

"That's right, Mrs. Gray," spoke up Hi Lang. "Ping!"

"Les?"

"Are you all packed and ready?"

"Me belongee chop-chop," answered Ping, meaning that he was ready to move.

"Follow along behind us, but make those lazy burros keep close up. We don't want to lose you and have to look all over the desert for you. Now, folks, please listen carefully to what I have to say. While I do not wish to alarm you, it is well that you thoroughly understand what our situation is. We must find water. You will all spread out with an interval of a hundred yards, say, between ponies, and scrutinize every foot of ground on either side."