I.A DEAD LETTER COMES TO LIFE II.THE MYSTERY BOYS ADD A MEMBER III.GOLD, AND A LIFE AT STAKE IV."QUIPU BILL" V.THE CHUMS PROVE THEIR METTLE VI.A NEW MYSTERY DEVELOPS VII.CLIFF TRIES A RUSE VIII.THE OUTCOME IX.AMBUSHED! X.THE HIDDEN CITY XI."CHASCA, HAILLI!" XII.CLIFF FACES A PROBLEM XIII.THE GAMES XIV.GOLD, AND A SURPRISE XV.THE FEAST OF RAYMI XVI.THE MYSTERY BOYS HOLD COUNCIL XVII.FROM BAD TO WORSE XVIII.TIT FOR TAT XIX.HUAMACHACO'S SECRET XX.ON THE TEMPLE STEPS XXI.RATS IN A TRAP XXII.THE TEMPLE OF THE SUN XXIII.CHASCA APPEARS AGAIN XXIV.THE INCA SPEAKS XXV.TOM'S ADVENTURE XXVI.INTO THE DUNGEONS XXVII.BEASTS OF BURDEN XXVIII."CAN WE GET THERE IN TIME?" XXIX.AT THE CISTERN XXX.A FORTUNE BY MISFORTUNE XXXI.CLIFF BECOMES A PROPHET XXXII.THE ANDES CLOSE THEIR JAWS XXXIII.NO WAY OUT? XXXIV.HUAYCA PLAYS DECOY XXXV.FOLDED ARMS