[ CHAPTER XXI. — HE INSTALLS HIS WIRELESS ]

[ CHAPTER XXII. — KAFFEE KLATSCH ]

[ CHAPTER XXIII. — THE TWO-WHEELED MYSTERY ]

[ CHAPTER XXIV. — DER KAISER ]

[ CHAPTER XXV. — THE MASQUERADER ]

[ CHAPTER XXVI. — TWO REMARKABLE MEN ]

[ CHAPTER XXVII. — ALL CARDS ON THE TABLE ]

[ CHAPTER XXVIII. — WHERE IS IT? ]

[ CHAPTER XXIX. — THE DIFFERENCE OF THEIR STATIONS ]

[ CHAPTER XXX. — THEY CALL FOR ASSISTANCE ]