In which a young adventurer finds himself amidst the fierce Black Tatars of Thibet and joins their siege against the city of Yarkand, employing wondrous electrical devices to shift the tide of battle and reclaim stolen treasures. Amidst clashes and cunning stratagems, he navigates alliances and enmities in a strange land, ultimately taking flight upon a marvel of invention that whisks him away from the fray.

In which a young American boy journeys swiftly over oceans and lands, encountering curious villagers and the bustling streets of London, before boldly gaining entry to the royal palace. There he displays miraculous inventions that reveal distant battles and hidden truths, earning the king’s gratitude and a new measure of respect.

In which a young American boy named Rob, armed with a wondrous electrical device called the Record, ventures boldly into the heart of Paris to alert the Republic's president of a menacing conspiracy threatening his nation. Amidst the beautiful boulevards and the swirling intrigue of politics, Rob's earnest interference is met with both astonishment and gratitude as he seeks to uphold the liberty so cherished by his own country.

In which a young adventurer, having spent the night amidst the reverberations of a London church tower, takes to the skies and visits Paris, encountering a curious and excitable French scientist eager to comprehend his wondrous flying machine. The encounter, laced with revelation and a touch of danger, is but a prelude to the boy’s exploration of the grand city’s bustling streets and stately hotels, where he quickly finds a humble lodging for the day.

In which young Rob returns home from his remarkable adventures to find his family relieved and curious, while his mysterious visitor, the Demon, arrives once more with reproaches and a stern demand that Rob share his wondrous inventions only with the cultured minds of the world. The Demon’s ire gradually softens as he exchanges Rob’s damaged machine for a sturdier one and promises further magnificent gifts, on condition of a solemn promise to forsake uncivilised realms.

In which Rob, a lively American lad with a thirst for electrical marvels and a somewhat reckless spirit, prepares silently for a clandestine nocturnal voyage, cloaked in mysterious and potent garments. With a pocketful of modest savings, familiar maps, and a compass, he embarks on a swift and solitary flight toward London beneath a canopy of stars, eager to embrace the adventures that the coming week may hold.

In which the Demon presents Rob with remarkable electrical gifts, including a protective garment, an enchanted Record of Events that reveals the happenings of the world, and spectacles that reveal the true nature of those he meets. These wondrous inventions, brimming with the promise of knowledge and safety, impress upon Rob the importance of wisdom and patience in wielding such power.

In which a young adventurer, traversing the ocean skies, alights upon a mysterious, wooded island inhabited by formidable natives with a fearsome reputation. Though swiftly captured and threatened by these cannibals, he relies on wit and strange inventions to evade his grim fate and attempts a daring escape amidst the bewildered tribespeople.

In which a bright and curious youth, gifted with wondrous electrical contrivances and a miraculous sustenance, embarks upon an aerial journey that confounds his family and awakens their concern. With a light heart and cheeky confidence, he explores distant cities and deftly evades trouble, all while marveling at the boundless possibilities that float beneath the starry canopy.

In which a young adventurer deftly escapes a hostile island with a wondrous, though temperamental, flying machine, encountering a band of fearsome pirates whose cunning is no match for his electric tube. After a perilous voyage above a stormy ocean, he finally draws near to home, guided by a mixture of hope and the uncertain yet faithful workings of his remarkable device.