A Fourth Pocket Full of Inventions

This fourth collection of invention stories sees just six instead of the typical seven, but each one is longer and more detailed than previous stories. This includes:TOM SWIFT AND HIS ULTRALIGHT RECONOJET The Government is looking for a long-flying, light and small aircraft to perform high-flying observation. What they request and what they get will be different if Tom has his way. TOM SWIFT AND THE NEUROSYMPHONY When his favorite Jr. High teacher approaches Tom with an odd request, he decides to help her by creating a set of unique musical instruments, ones he hopes will win her the prize she needs to keep her school's music program. TOM SWIFT AND HIS HYDROCYCLE A friend of Bud's bets the flyer that his friend Tom Swift cannot come up with an exciting new mode of sports transportation, so Tom sets about developing a high-speed underwater scooter that is a bit more than anyone expects.TOM SWIFT AND THE EARTH PLUNGE People are just dying trying to win a new X Prize, to be the first to skydive from orbit, survive the heat of re-entry, and land safely. When people really die, Tom tries to get the contest called off, and he is challenged by the promoter to put up or shut up.TOM SWIFT AND THE RESONANCE ENGINE Oil is becoming scarce and Tom hopes to create a new type of engine, one requiring nothing but sound to run. But a chance discovery may put the project on terminal hold.DAMON SWIFT AND THE MECHANICAL FISH In his second adventure, Tom's father takes on a project from the Royal Australian Navy to develop a new two-man submarine capable of a very special kind of stealth underwater travel.