“You say, Mrs. Reemy,” he began, “that you are contemplating going off for a big adventure some day. If you haven’t anything definite in mind, I’d like to offer a suggestion. How would you like to make an attempt to explore a lost valley--a forgotten valley--in reality, an undiscovered valley?” “What?” Her dark eyes were sparkling. “Just that. Andy and I heard about it the other day. And on the way to this undiscovered valley you may hunt for opals. Of course, a fellow may hunt for opals anywhere he chooses. But in this case he may do so with reasonable hopes of success.” “Do you mean that, Doctor Shonto?” “Absolutely. But I have only the story of a couple of prospectors, one of whom has been an old-time opal miner in Australia. They are both intelligent men, and their story rang true.” “Please let’s hear all about it!” begged Charmian. “An undiscovered valley! How can it be undiscovered when these prospectors know about it? And opals! You’ve lured me away from glands for the present, Doctor. Give us the yarn!” CHAPTER III THE PROSPECTOR’S STORY “WELL,” began Dr. Shonto reflectively, “Andy and I were in our camp on the North Fork of the Lizard, about two and a half miles from Lovejoy’s place. Two men came along with pack burros, bound up into the Catfish Country--if you know where that is.” Charmian nodded eagerly. “They stopped, and as lunch was about ready we invited them to eat with us. “They called themselves Smith Morley and Omar Leach. They are both middle-aged men and seem to have had a great deal of experience at prospecting. “Well, Andy and I are old-time ramblers ourselves. We spend a great deal of time together in the outlands, mostly just loafing around and enjoying camp life and the scenery. We were able to talk with the pair about many things of interest to both factions. One thing led to another, and finally Smith Morley mentioned that he had hunted for opals with a camel train in Australia. We at once became interested and asked him all about the life. It is vastly entertaining, from his account. “Then he told us of the California opals, but when Andy asked if he ever found any in this state he grew reticent. Finally, however, when he learned that both of us were men of some means, he told us about certain opal claims that he and his partner had filed on this year, and which they would be obliged to lose because they were financially unable to get into the country and do their assessment work. “They offered to sell the claims to us, and to take us to them and establish us if we would defray the expenses. Morley showed us one of the handsomest opals I have ever seen. Its fire was simply wonderful--I’d never before seen anything to equal it.