CONTENTSI.[Rule or Ruin]II.[The Clifford Seven Get a Challenge]III.[Bill]IV.[When the Athletic Committee Met]V.[Lanky's Hard Luck]VI.[When Brutus Changed His Mind]VII.[Forced to Play]VIII.[Up Against the Outcast Seven]IX.[The Three Chums]X.[Lanky Brings News]XI.[Still a Mystery]XII.[The Headwaters of the Harrapin]XIII.[What the Smoke Meant]XIV.[The Volunteer Fire Laddies]XV.[The Old Farmer's Secret]XVI.[Down the River]XVII.[Lanky's Lucky Day]XVIII.[The Puzzle Solved]XIX.[Found at Last]XX.[Such a Glorious Day]XXI.[The Campfire on Rattail Island]XXII.[Surprising Clifford]XXIII.[The Great Victory—Conclusion]