Qwerty Stevens2 books in series
Back in Time with Thomas Edison Publisher's Summary
Edison patented over a thousand inventions in his life. I started thinking: What if he had created a secret invention that was so revolutionary that he didn't feel the world was ready for it? What if he buried it in his backyard and never told anyone about it? And what if some kid was digging in his garden and found this incredible machine 120 years later?