Libro con 76 páginas impresas en color, encuadernación rústica, y cubiertas en color.
Información de la editorial:
When a problem grows out of control, it can invade our whole lives… Mike knows it very well. A boy who is listening to his parents quarrelling all the time and moreover he seems to be invisible at the high school, invisible except for the class bullies. And everything gets worse when a tree starts growing in the middle of the wall of his room.
