Some months after Professor Borrodaile had put his plan into execution, young Merriwell received a letter from his father, in Bloomfield, rather mysteriously requesting him to pay a visit to the lost town of the Picket Posts and to report at length upon anything he might find in the only habitable building of the camp. Aided by a prospector named Nick Porter, Frank and his chums visited Happenchance and there found the professor. They had adventures in helping the professor get his location notice on file, and only Merry's fleetness of foot and good judgment saved a prospective bonanza mine for Borrodaile. Very strangely the professor had left Ophir for Gold Hill not many hours after he had come with Frank and his friends from Gold Hill to Ophir. The youngsters were not his guardians, however, and did not feel authorized to interfere too much in his affairs. Merry thought it best to go slow in the matter until a reply had been received to the report which he had sent to his father. Six days or a week would be required in forwarding a letter to Bloomfield and receiving a letter in reply. Meanwhile four days had elapsed, and Borrodaile had dropped completely out of sight. Knowing the professor to be inexperienced in business affairs, Merriwell had begun to worry about him. There were unscrupulous men in plenty who would not hesitate to take advantage of him with the idea of securing his very valuable mining claim. The telephone message from Mr. Bradlaugh, therefore, was quite disturbing. "Ah, ha!" exclaimed Ballard, when Merriwell reported the professor missing from Gold Hill, "so you think there's nothing in that dream of mine, eh? This news from Gold Hill shows that it amounts to something." "What the mischief do you think is going on, Chip?" asked Clancy. "I'm up in the air and haven't an idea," replied Frank. "Mr. Bradlaugh asked me to come over to his office in town for a conference." "We'll have to hit the golden trail," declared Ballard, "and run it out to a finish. We've got to be mighty quick about it, too, or there's no telling what will happen to the old prof." "Show us your nuggets as big as washtubs, Pink," grinned Clancy, "and I'm willing to begin to sprint." "The dream was only a warning. It didn't suggest what we were to do, or how we're to go about it, but just gives us a hunch that Borrodaile needs help." "That's the trouble with dreams--there's too much guesswork about 'em. If you have one, and something happens that seems to tally with it, why, you're apt to take it for granted that you had a hunch. I'll bet you've had thousands of dreams about things that never happened, and yet here you're picking out one that appears to jibe with the prof's absence from Gold hill, and trying to make us think it's a warning. Stuff!" "You're too free with your snap judgments, Red," said Ballard solemnly, "but wait a while and you'll change your tune."