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