I remember reading a book (published by Scholastic at that time) with a large tree on its cover and the following story line. But can't remember the name !
Story line (Spoiler alert !) :
There was a small place where a boy and girl go on an adventure to find a tree that has these sparkly particles that are butterfly wings' remains. Also they eat the fruit of the tree. After some days, one of them undergoes metamorphosis like a caterpillar to butterfly and gets wings. Soon they discover other kids from the town are also getting wings, but were secretly operated upon by their adults who always knew of the secret.
Anyone got any idea bout the name of the book ? Thanks for the help.