Mystery Boys and the Inca Gold

I.A DEAD LETTER COMES TO LIFEII.THE MYSTERY BOYS ADD A MEMBERIII.GOLD, AND A LIFE AT STAKEIV."QUIPU BILL"V.THE CHUMS PROVE THEIR METTLEVI.A NEW MYSTERY DEVELOPSVII.CLIFF TRIES A RUSEVIII.THE OUTCOMEIX.AMBUSHED!X.THE HIDDEN CITYXI."CHASCA, HAILLI!"XII.CLIFF FACES A PROBLEMXIII.THE GAMESXIV.GOLD, AND A SURPRISEXV.THE FEAST OF RAYMIXVI.THE MYSTERY BOYS HOLD COUNCILXVII.FROM BAD TO WORSEXVIII.TIT FOR ...