"I reckon you are not the only tired boy in this camp to-night," and Bud spread out his blanket on the ground by the side of Thure's and stretched himself out on it. "Every bone and muscle in my body has been just a-teasing me for the last two hours to let up and give them a rest. Well, we got here anyhow; and I guess we can now make Sacramento City all right to-morrow night. Say," and he sat up on his blanket with a jerk at the thought that had suddenly come to him, "do you suppose those two villains, who robbed and killed the old miner, have found out that we have the skin map that they committed murder in vain to get? If they have, I reckon we'll have to be on the lookout for them good and sharp. Why, they might be on our trail even now!" "You are right," and Thure sat up quickly. "But I can't see just how they could know that we have the map. They certainly didn't wait for introductions when we charged down upon them; and I don't believe they followed us home--they were too scart, the cowards! But, as Kit Carson says: 'The time to be cautious is before the Indians get your scalp--not afterwards.' I reckon that means that we've got to keep guard to-night; and I don't believe I ever felt more sleepy," and Thure sighed. "But, if Brokennose and Pockface should happen to be on our trail, they couldn't ask for anything better than to get us two here alone and asleep to-night. They sure would have the skin map in the morning, and, probably, our horses and supplies, and, possibly, our lives. Say, but I just would like to meet them two cowards when I am awake!" and Thure's eyes glinted wrathfully. "Well, I should not be surprised if we had that pleasure before long," and Bud's face hardened. "If the old miner told them of the Cave of Gold and the skin map, and he said he did, they sure will be on the lookout for the party with the map; and it wouldn't take much inquiring for them to find out that it was us that brought the dead miner home; and then, I reckon, it won't take them two minutes to guess what started us so sudden-like for the mines. I sure hope they won't find us until we get to our dads and Rex and Dill and Hammer Jones. I'd feel safe enough then. You see, we are guarding not only our lives, but also the Cave of Gold; and the finding of that cave means a lot to all of us." "It sure does," Thure agreed. "Luck has been against both of our dads lately; and, well, we've just got to find that Cave of Gold; and we are going to find it, in spite of all the broken noses and pockmarked faces in the world. But, it won't do to sit here talking all night. We must get all the sleep we can. Who will stand guard first?" "I will," Bud answered, picking up his rifle and rising; "so get into your blanket and asleep as quick as you can. It must be almost midnight now."