Title: The wizard of Menlo Park, New Jersey
Description: "During the coldest winter ever, George and Gracie land in Menlo Park, New Jersey, 1879--near Thomas Edison's famous laboratory. Mr. Edison has just invented a long-burning light bulb, but he's keeping a huge secret: he's also discovered time travel. The twins need Mr. Edison's help to protect the time machine from Crow. But will they stop Crowe in time?"--Page 4 of cover.
Subjects: Twins, Brothers and sisters, Adventure and adventurers, Menlo Park Laboratory, Juvenile fiction, Time travel, Fiction, Fiction, historical, general, Children's fiction, Time travel, fiction, Twins, fiction, Brothers and sisters, fiction, Adventure and adventurers, fiction
People: Thomas A. Edison (1847-1931)