The Space Ship Under the Apple Tree
Louis Slobodkin
Mass Market Paperback
(Collier Books, March 15, 1971)
Eddie Blow has always been just an ordinary kid, leading an ordinary life. Until one fateful summer night when he meets Marty, a green-suited, three-foot-tall Junior Scientist Explorer from the planet Martinea. Now Eddie has joined forces with Marty to search for the Secret Power Z. A hilarious story of extraterrestrial friendship from a Caldecott Medalist.