"Now back to the farm for me!" Sam had said at this time, and all were glad to go back, and also to return to Putnam Hall, from which seat of learning they presently graduated with honors. Then Mr. Anderson Rover got word of a valuable treasure, and he and the boys, with a number of their friends, went to Treasure Isle in search of it. They were followed by some of their enemies and the latter did all in their power to cause trouble.
Although the boys had finished at Putnam Hall, their days of learning were not yet over, and soon they set off for Brill College, a high-grade seat of learning located in one of our middle-western states. They had with them an old school chum named John Powell, usually called "Songbird," because of his habit of making up and reciting so-called poetry, and were presently joined by another old school companion named William Philander Tubbs, a dudish chap who thought more of his dress and the society of ladies than he did of his studies. Tom loved to play jokes on Tubbs, who was generally too dense to see where the fun came in.
From the college the boys had taken another trip, as related in the fifteenth volume of this series, called "The Rover Boys Down East." There was a mystery about that trip, of which the
