The Third MushroomAudiobook CD - 2018
When thirteen-year-old Ellie's Grandpa Melvin, a world-renowned scientist in the body of a fourteen-year-old boy, comes for an extended visit, he teaches her that experimenting--and failing--is part of life.
Publisher: [New York, N.Y.] : Random House/Listening Library, 
Characteristics: 3 audio discs (3 hr., 38 min.) : CD audio, digital ; 4 3/4 in digital,optical audio file,CD audio