Children's science fiction adventure. When Josh recreates his Dad's aviation theories, he invents a material that repels gravity. When Josh and his friends attach an anti gravity harness to themselves, they can fly They have many adventures, including stopping a robbery and dropping drug dealers into the River. But the world of industrial espionage wants this invention, which will change the world of travel and haulage.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.