Chapter I—Old Friends Get Together

Overlanders plan for their summer’s vacation in the saddle. Emma Dean “dotes on mysteries.” Hippy Wingate gets a hard blow. Stacy amazes his new friends by his dramatic entrance. Shots and yells startle the Overland Riders.

Chapter II—An Interrupted Sleep

The traveling salesman entertains his fellow passengers with tales of wrecks and hold-ups. Chunky makes the passengers laugh. Emma Dean has an attack of “nerves.” Sheriff Ford is suspicious. The “Red Limited” comes to a jolting stop. “Robbers!” screams a woman.

Chapter III—The Hold-up of the Red Limited

An ominous silence settles over the transcontinental express. The sheriff calls for volunteers to drive off the train bandits. Overland girls offer their services. The treasure car cut off. Stacy, in his pajamas, joins the defenders.

Chapter IV—In a Lively Skirmish

“Dynamite!” exclaims Sheriff Ford. Defenders give battle. Stacy Brown shoots and talks. Hippy goes on a desperate mission. Bandit guards are outwitted. Lieutenant Wingate caught in a tight place. “I know you!” yells the Overland Rider.

Chapter V—On the Trail of the Missing

Sheriff Ford starts a search for Lieutenant Wingate. A clue at last. “Captured by the bandits!” exclaims Tom Gray. Chunky helps himself to a plum pudding. “Suffering cats! You’re it!”

Chapter VI—Chunky Meets the Bandits

The fat boy stampedes the outlaws’ horses. “Oh, wow! I’ve lost my biscuit.” A pony that knew the way. “I suppose I emptied twelve saddles,” boasts Stacy. Shots arouse the sheriff’s camp. “Lie low, everybody!”

Chapter VII—Bandits Catch a Tartar

Lieutenant Wingate, unconscious, is carried away on a pony’s back. A cruel blow. A pin-prick saves the day. The escape of the Overland captive. “Cease firing! It’s Hippy!” The traveling salesman in a new rÔle.

Chapter VIII—Headed for the High Country

Woo Smith joins the Overland outfit. Stacy declares that his pony can climb a tree. “I want food!” is the fat boy’s plaint. The Overlanders are introduced to a “kyack.” Packs are “thrown” and the journey to the Sierras is begun.

Chapter IX—Their Slumbers Disturbed

“All aboard for the High Sierras!” The Chinaman proves to be a rare find. “You leave it to Smith,” advises Hippy. Stories of rattlesnakes in campers’ blankets set the Overland girls’ nerves on edge. Woo savvies “transmigration.”

Chapter X—“Boots and Saddles”

The Overland camp in an uproar. “Snakes! Oh, wow!” howls the fat boy. “Me savvy somebody pull queue,” wails Woo Smith. The dark mystery is finally solved. Stacy Brown proves to be an unwilling “wrangler.”

Chapter XI—Ponies Get a Bad Fright

Hippy uses a pea-shooter with disastrous results. The fat boy awakens in a wild rose bush. Suspicion becomes a certainty. Overlanders make a perilous descent. “The ponies are stampeding!” shouts Lieutenant Wingate.

Chapter XII—Amid the Giant Sequoias

“Look! Oh, look,” cries Emma Dean. Lieutenant Wingate shoots a cinnamon bear. “Uncle Hippy never misses what he hits.” Stopped by a rattler. Tom Gray lost in the great forest. Watched over by trees centuries old.

Chapter XIII—The Camp at the “Lazy J”

A surprise in the High Sierras. Overland Riders entertained at a mountain ranch. Stacy tries to shoe a horse. The white mare gets into action. Warned against the High Country. “Keep away from the ‘Crazy Lake’ section,” advises the foreman.

Chapter XIV—Woo’s Eyes Are Keen

The Chinaman sights a “buck in lelet.” Hippy misses a “sure shot.” “Why don’t you use a pea-shooter?” jeers Stacy. A rifle that had been tampered with. “I—I just wanted to get even with you.” A shot that reached the mark.

Chapter XV—Following the Aerial Trail

The Overland Riders enjoy a venison dinner. Elfreda Briggs is reminded of Coney Island. Crossing a perilous mountain ridge. Emma Dean is afraid and doesn’t care who knows it. The white mare meets with sudden disaster.

Chapter XVI—Going to Bed in the Clouds

Kitty gives her masters a perilous job. Stacy offers to get a derrick. A scene to be remembered. Getting up in the world. Tom Gray makes up the Overlanders’ beds with a pick. Stacy objects to being buried so soon after supper.

Chapter XVII—In the Land of Pink Snows

Woo loses a “piecee kettle” over the brink. The campfire disappears in the clouds. Camping in the valley of the blue lupines. A trail that was difficult to find. Elfreda becomes suddenly light-headed.

Chapter XVIII—At the “Top of the World”

The mystery of the “pink snows” is finally solved by Tom. A snowball battle above the clouds. On the peak of the High Sierras. The Overland Riders go to sleep in a snowbank. “Girls, this is an ideal summer resort.”

Chapter XIX—Bowling in Nature’s Alley

Hippy Wingate gives his companions a delightful surprise. The Overlanders withdraw their threat to throw him off the mountain. A mysterious lake is discovered. Emma Dean scores a hit. Bullets stop the highest bowling game on record.

Chapter XX—Lead and Mystery in the Air

Overland Riders suddenly find themselves under fire. Stacy “creeps” to safety. “Get up and walk, you tenderfoot!” The Aerial Lake lives up to its reputation. Woo Smith savvies trouble. “Discovered!” exclaims Hippy.

Chapter XXI—The Face in the Waters

The guide informs the Overlanders that a woman has been spying on the camp. Stacy feels like a snowbird. Prowlers leave a trail. Lieutenant Wingate meets with an unpleasant surprise. The pool of the mountain trout and what Grace Harlowe saw there.

Chapter XXII—The Mystery of Aerial Lake

Grace Harlowe flees from a hideous face. The Overland girls are eager to solve the mountain mystery. Stacy Brown discovers an “ark” and goes out for a sail. The fat boy mysteriously missing. Woo consults the skies. The lost boy returns with an appetite.

Chapter XXIII—The Lair of the Bad Men

Chunky laughs at his companions’ distress. Lieutenant Wingate invites his nephew out for a “paddle.” Stacy makes an important discovery. Plunder found in the bandits’ cave. The log that was chained down. Bullets drive the Overlanders from their quest.

Chapter XXIV—Making a Last Stand

The Overland Riders are fired on by the mountain ruffians. Imprisoned by dynamite in the robbers’ cave. A battle that came to a sudden end. Sheriff Ford to the rescue. Mother Jones’ career is ended.