"Thanks, but I don't care for just that kind of happening," and Dick laughed as he vaulted into the saddle and the travelers kept on their way. Because of the fact that they had with them several led horses, carrying packs containing food and other supplies, their progress was necessarily slow.

"Well, we're half way there, I guess, aren't we, Billee?" asked Bud when, late that afternoon, they reached a place in a grove of trees amid the foothills where it seemed a good place to make camp for the night.

"Leetle more'n half way," admitted the old puncher.

"That's good!" sighed Dick. "I'm anxious to see what we'll find in
Death Valley."

"Do you know, Billee, I've got another idea," remarked Bud as the horses were picketed and preparations begun for cooking supper. "I mean about the mysterious deaths of men and cattle you say you saw while you were a hand on Dot and Dash."

"Yes, I seen 'em all right!" declared Billee with more force than grammar.

"I'm not doubting that," admitted Bud. "Though you don't know what killed 'em. But I got an idea."

"What?" chorused Nort and Dick.

"A poison spring!" exclaimed Bud. "I mean bad water. You know there's a lot of it out this way, and especially as we get into the mineral district, where dad's new ranch is located. Maybe there were poison springs on Dot and Dash, Billee, and the men you saw lying dead, and also the cattle, might have drunk from them. Couldn't it happen that way?"

"Yes, it could," admitted Billee with an emphasis which showed his doubt. "But I never heard tell of no bad water on Dot and Dash."