Nick Carter Stories No. 145, June 19, 1915AN UNSOLVED MYSTERY; Or, NICK CARTER’S GOVERNMENT CASE.Reading editionChapter navigation18 reading sectionsGo to chapterChoose a chapter…Front matterAN UNSOLVED MYSTERY; Or, NICK CARTER’S GOVERNMENT CASE.Chapter I · A SECRET CONFERENCE.Chapter II · THE GOVERNMENT ENGINEER.Chapter III · A CURIOUS CLEW.Chapter IV · NICK CARTER’S DEDUCTIONS.Chapter V · PAVING THE WAY.Chapter VI · NICK SHOWS HIS HAND.Chapter VII · INTO A TRAP.Chapter VIII · CAPTAIN DILLON’S VISITOR.Chapter IX · CHICK CARTER’S QUEST.Chapter X · A DESPERATE MOVE.Where’s the Commandant? By C. C. WADDELL.Chapter XXII · AN OFFER.Chapter XXIII · VAIN EFFORTS.Chapter XXIV · NEW TACTICS.Chapter XXV · UNEXPECTED VENGEANCE.Chapter XXVI · THE DAMPENED LETTER.Previous chapter ←Front matterNext chapter →Chapter I · A SECRET CONFERENCE.All chapters and sections (18)Opening pagesFront matterOther sectionsAN UNSOLVED MYSTERY; Or, NICK CARTER’S GOVERNMENT CASE.Chapters12345678910Other sectionsWhere’s the Commandant? By C. C. WADDELL.Chapters2223242526Edited by CHICKERING CARTER.◇← Front matterCHAPTER I. A SECRET CONFERENCE. →