They find that since their last visit to Border City the town has undergone a great change, and is still in the midst of a true Western boom. To add to the interest, a New York financier is carrying on experiments with a dirigible balloon.

At Circle T Ranch the lads meet some of their old friends among the cowboys.

This story tells how the Ramblers came into possession of an aeroplane. Willie Sloan is an odd little chap, rather difficult to understand, and is not altogether pleased with life on the plains. His presence among the crowd is largely responsible for their unexpected and startling adventures, in several of which the Border City aeronaut and his dirigible balloon figure prominently. As an aviator, Bob Somers finds that all his coolness and skill are needed.

The stay in Wyoming brings about quite an unexpected result for Willie Sloan.

Other experiences of the same boys are told in “The Rambler Club Afloat,” “The Rambler Club’s Winter Camp,” “The Rambler Club in the Mountains,” “The Rambler Club on Circle T Ranch,” “The Rambler Club Among the Lumberjacks,” “The Rambler Club’s Gold Mine,” “The Rambler Club’s House-boat.”

Contents

I. A Letter from Bob[ 9]
II. Willie Cannot Help It[ 19]
III. Cranny’s Plan[ 32]
IV. The Ramblers Arrive[ 40]
V. Preparations[ 54]
VI. Border City Once More[ 64]
VII. At the Ranch[ 79]
VIII. At Lone Pine[ 91]
IX. In the Air[ 104]
X. Bob Takes a Flight[ 124]
XI. The Dirigible[ 136]
XII. “He’s a Puzzle”[ 147]
XIII. Willie Shows His Nerve[ 159]
XIV. Milling the Herd[ 172]
XV. The Underground Passage [ 180]
XVI. The Astonishing William[ 192]
XVII. The Two in the Sky[ 209]
XVIII. The Rescue Party[ 219]
XIX. The Eagle[ 232]
XX. Over the Mountains[ 241]
XXI. Adrift[ 250]
XXII. Prisoners[ 270]
XXIII. By Moonlight[ 281]
XXIV. To the Rescue[ 291]
XXV. The Visitors[ 308]

Illustrations

PAGE
Four Curiously Spotted Bronchos[ Frontispiece]
“What Can a Chap Do Out Here?”[ 80]
“Go Back to the Ranch”[ 169]
“What In the World Has Become of Them?”[ 223]
An Answer Almost Immediately Floated Back[ 299]

The Rambler Club’s Aeroplane