Charley took it, and, drawing near the fire, examined it closely. "Too heavy for petrified wood," he commented, as he took out his knife and scraped away at the green encrusted object. "By Jove! Look here," he exclaimed a moment later. Walter bent over and looked at the place where his chum had been scraping. A reddish-brown color appeared where the green crust had been removed. "Is it gold?" he asked, excitedly. "No," Charley replied. "It's copper. Let's scrape the balance of this verdigris off, and see if we can get an idea what it was intended for." Laying the cylinder on the ground between them, both boys set to scraping away the green crust, and in a short time they had it all removed, leaving exposed the bright metal beneath it. "Looks like there was a crack running around it near that end," Walter observed, as Charley held the cylinder down by the fire for closer examination. "There is," agreed his chum, excitedly. "I believe the thing is hollow. That this end is nothing but a close fitting cap. Shall I see if I can knock it off?" "Sure," agreed Walter, and Charley hammered against the end with his hunting knife. Suddenly the end gave way and out on the ground before the boys fell a shower of gold coins and jewelry. Charley picked up one of the coins and held it to the light. "It's a Spanish doubloon," he announced breathlessly. "Let's count them and put them back in the cylinder. This is almost too good to be true." The gold coins were gathered up from the ground and counted. There proved to be a thousand dollars' worth altogether. Besides the coins, there were some twenty gold rings set with gems, but these the boys were too inexperienced to tell the full value of. They, as well as the gold coins, were put back into the cylinder, and it was replaced in the game bag. "I expect there are more where those came from," Walter remarked. "I doubt it," said his chum, thoughtfully. "Even what we have found would have been considered a big amount in the days of those Spaniards. We can look when we go back to-morrow. Meanwhile, I am going to get me a good night's sleep. To-morrow is going to be another hard day." CHAPTER XXI. CHARLEY GETS A TELEGRAM. THE tired-out boys slept soundly until awakened by the rays of the morning sun. Rising, they enjoyed a good swim in the cool waters of the lake, and then, stirring up the dying embers of the campfire, they warmed up and ate what remained of their feast of the night before. As soon as it was finished, they saddled up their ponies, and, with a parting look at the beautiful lake, headed back for camp. They had not gone far before the sky became overcast, and soon there began to fall a fine, drizzling rain, that soaked their thin clothing and chilled their bodies. There was no shelter to get under, so they could only ride on and take it as it came. When they came to the place where they had stopped the day before Walter wanted to halt and look for more treasure, but Charley objected.