I THE FIRST DIAMOND II TWEEDLEDUM AND TWEEDLEDEE III THURSDAY AT THREE IV THE UNLIMITED SUPPLY V THE ASTUTE MR. BIRNES VI THE MYSTERIOUS WOMAN VII A WINGED MESSENGER VIII SOME CONJECTURES IX AND MORE DIAMONDS! X THE BIG GAME XI THE SILENT BELL XII THE THIRD DEGREE XIII MR. CZENKI APPEARS XIV CAUGHT IN THE NET XV THE TRUTH IN PART XVI MR. CZENKI EXPLAINS XVII THE GREAT CUBE