Anne Fine 
Up On Cloud Nine 

How stupid do you have to be to fall out of a top floor window?
Or was Stolly trying something else – up on cloud nine, even then?
Stolly has always been so alive, so inspiring, taking risks, hiding nothing, notorious for being the school”s most imaginative liar (or fantatist, as he calls it). But now he”s lying in a hospital bed and Ian, his best friend who”s as close as a brother, is watching, waiting and remembering . . .
A characteristically funny, moving, life-affirming novel about a most remarkable character and the truly inspirational effect he has on everyone he meets.