ions and their off time from school they help their father by
hunting down clues themselves.

THE TOWER TREASURE

A dying criminal confessed that his loot had been secreted "in the
tower." It remained for the Hardy Boys to make an astonishing
discovery that cleared up the mystery.

THE HOUSE ON THE CLIFF

The house had been vacant and was supposed to be haunted. Mr. Hardy
started to investigate--and disappeared! An odd tale, with plenty
of excitement.

THE SECRET OF THE OLD MILL

Counterfeit money was in circulation, and the limit was reached
when Mrs. Hardy took some from a stranger. A tale full of thrills.

THE MISSING CHUMS

Two of the Hardy Boys' chums take a motor trip down the coast. They
disappear and are almost rescued by their friends when all are
captured. A thrilling story of adventure.

HUNTING FOR HIDDEN GOLD

Mr. Hardy is injured in tracing some stolen gold. A hunt by the
boys leads to an abandoned mine, and there things start to happen.
A western story all boys will enjoy.

THE SHORE ROAD MYSTERY

Automobiles were disappearing most mysteriously from the Shore
Road. It remained for the Hardy Boys to solve the mystery.

THE SECRET OF THE CAVES

When the boys reached the caves they came unexpectedly upon a queer
old hermit.

THE MYSTERY OF CABIN ISLAND

A story of queer adventures on a rockbound island.

THE GREAT AIRPORT MYSTERY

The Hardy Boys solve the mystery of the disappearance of some
valuable mail.

* * * * *

THE TED SCOTT FLYING STORIES
By FRANKLIN W. DIXON

Illustrated. Each Volume Complete in Itself.

No subject has so thoroughly caught the imagination of young America as
aviation. This series has been inspired by recent daring feats of the
air, and is dedicated to Lindberg, Byrd, Chamberlin and other heroes of
the skies.

OVER THE OCEAN TO PARIS; _or Ted Scott's daring long distance
flight_.
RESCUED IN THE CLOUDS; _or, Ted Scott, Hero of the Air_.
OVER THE ROCKIES WITH THE AIR MAIL; _or, Ted Scott, Lost in the
Wilderness_.
FIRST STOP HONOLULU; _or, Ted Scott, over the Pacific_.
THE SEARCH FOR THE LOST FLYERS; _or, Ted Scott, Over the West
Indies_.
SOUTH OF THE RIO GRANDE; _or, Ted Scott, On a Secret Mission_.
ACROSS THE PACIFIC; _or, Ted Scott's Hop to Australia_.
THE LONE