_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 EAGLE OF THE BORDER;
_or, Ted Scott and the Diamond Smugglers._

FLYING AGAINST TIME;
_or, Breaking the Ocean to Ocean Record._

OVER THE JUNGLE TRAILS;
_or, Ted Scott and the Missing Explorers._

LOST AT THE SOUTH POLE;
_or, Ted Scott in Blizzard Land._

THROUGH THE AIR TO ALASKA;
or, Ted Scott's Search in Nugget Valley.

FLYING TO THE RESCUE;
_or, Ted Scott and the Big Dirigible._

DANGER TRAILS OF THE SKY;
_or, Ted Scott's Great Mountain Climb._

FOLLOWING THE SUN SHADOW;
_or, Ted Scott and the Great Eclipse._

BATTLING THE WIND;
_or, Ted Scott Flying Around Cape Horn._

* * * * *

GROSSET & DUNLAP, PUBLISHERS, NEW YORK

HAL KEEN MYSTERY STORIES

By HUGH LLOYD

* * * * *

Boys! Meet Hal Keen, that lanky, nonchalant, redheaded youth whose
guiding star is the star that points to adventure, excitement and
mystery. Follow him in his hunts for clues and criminals. There are
plenty of thrills and shivers in these stories to keep you on your
toes.

THE SMUGGLER'S SECRET

Hal Keen sets out to get to the bottom of a mystery that threatens the
safety of a whole community.

THE MYSTERIOUS ARAB

Mystery, excitement, murder in a scientist's camp in the jungles of
Africa, where hate, revenge, and suspicion lead to tragedy.

THE HERMIT OF GORDON'S CREEK

The disappearance of two airmail pilots leads to a mystery that centers
about an abandoned mine and a strange old man.

KIDNAPPED IN THE JUNGLE

A hint of buried treasure in the ruins of an old French mission leads
Hal deep into the Central American jungle.

THE COPPERHEAD TRAIL MYSTERY

Baffling and blood-curdling events center about the ranch where Hal
Keen and his friends had gone in search of gold.

THE LONESOME SWAMP MYSTERY

The lonely and mysterious swamp gave up its secret only after a series
of terrifying events taxed Hal's courage and ability.

THE CLUE AT SKELETON ROCKS

In this new thriller Hal Keen finds mystery and adventure in and about
a lonely lighthouse on Skeleton Rocks, off the Maine coast.

THE DOOM OF STARK HOUSE

Mystery and terror in an old house in the wilderness above Quebec where
Hal Keen is the guest of a strange family.

*