Thirteen-year-old Robert Qwerty Stevens uses the time machine he finds in his back yard to visit Thomas Edison's workshop in 1879, and there helps develop the electric light bulb, but then needs his sister's help to return to his own time ...

 

This book is part of a book series called Qwerty Stevens, Back in Time .

This book has been graded for interest at 9-12 years.

There are 199 pages in this book. This book was published 2002 by Perfection Learning .

Dan Gutman has written many weird books for kids. He lives in New Jersey (a very weird place) with his weird wife and two weird children.