What we found in the sofa and how it saved the world / Clark, Henry

Finding a rare zucchini-colored crayon leads twelve-year-old River Monroe and his friends on an adventure with their eccentric neighbor to save Earth from invading interstellar storm troopers.

Finding a rare zucchini-colored crayon leads twelve-year-old River Monroe and his friends on an adventure with their eccentric neighbor to save Earth from invading interstellar storm troopers.