i picked up this great little book at crayon house in omotesando. it has giant mushrooms that go collecting people and trees that come down from the mountain with chainsaws to cut down tall apartment buildings. kind of makes me snicker and then....worry. not bedtime reading.
it's by cho shinta who, according to the world wide web, is a childrens book author. he's written something called the gas we pass, the story of farts.
it doesn't seem to have an isbn but has this website instead. tom's box looks like it's a publisher with a bookstore in kichijoji.