"I'd help Plum, too, if he'd let me," said Dave, and then gave a long sigh.
Two days later there was a sensation at the school. Doctor Clay came into the main class room in the middle of the forenoon, looking much worried.
"Young gentlemen, I wish to talk to you for a few minutes," he said. "As some of you may know, I am the proud possessor of a stamp collection which I value at not less than three thousand dollars. The stamps are arranged in three books, and I have spent eight years in collecting them. These books of stamps are missing, and I wish to know if anybody here knows anything about them. If they were taken away in a spirit of fun, let me say that such a joke is a poor one, and I trust the books will be speedily returned, and without damage to a single stamp."
All of the boys listened with interest, for many of them had inspected the collection, and they knew that stamp-gathering was one of the kind doctor's hobbies.
"Doctor, I am sorry to hear of this," said one boy, named Bert Dalgart, a youth who had a small collection of his own. "I looked at the collection about ten days ago, as you know. I haven't seen it since."
"Nor have I seen it," said Roger, who also collected stamps.
