Barcoe Jenks, the nervous and eccentric financier, enlists Tom's aid to travel to Colorado and determine the method of making artificial (and perfect!) gemstones -- the secret of this method having been used as bait to defraud Jenks of a large sum of money.
Don Sturdy in the tombs of gold; or, The old Egyptian's great secret : Unearthing secrets in the land of pyramids: A thrilling adventure of mystery, treasure, and ancient tombs
Victor Appleton
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Tom Swift circling the globe; or, The daring cruise of the Air Monarch : A Technological Adventure of Global Proportions
Victor Appleton
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Don Sturdy on the Desert of Mystery
Victor Appleton
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Don Sturdy on the Ocean Bottom
Victor Appleton
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Depth Perception
Victor Appleton
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Tom Swift and His Airline Express
Victor Appleton
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The Blurred Blogger
Victor Appleton
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Augmented Reality
Victor Appleton
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The Spybot Invasion
Victor Appleton
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The Drone Pursuit: Tom Swift Inventors' Academy, Book 1
Victor Appleton
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The Sonic Breach
Victor Appleton
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The Virtual Vandal
Victor Appleton
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