"Which way did they go?" Frank asked.

"Toward that building—I mean in that direction. But I lost them in the crowd."

"I thought they might come down this afternoon! Winnie wasn't with them?"

"No."

Frank was about to start away to find the girls, if he could, and question them in the interest of Badger and Winnie, but at that moment he was approached by Jack Diamond, one of the seniors.

Diamond walked up to Merriwell with all the dignity of the Great Mogul of Kuddyhuddy, and gave him a resounding slap on the back. Diamond belonged to "Bones," and the slap was a notification that the society had chosen Merriwell.

"I can't go now, Badger," said Frank, a bit regretfully.

Then he left the campus for his room, as each man slapped is expected to do, followed by Diamond, where he was notified formally of his election and told to appear for initiation at the society hall on Friday evening.

Of what that initiation consists no one not a member ever knows, and no member will ever tell. Its mysteries are more impenetrable than Free Masonry.