Les enfants de la planète bleue (Pef)
Andri Snaer Magnason et Pef2003

Brimir and Hulda are best friends, living on a beautiful blue planet where there are no grown-ups, life is wild and free, and each day is more exciting than the last. Until, one day, a rocket ship piloted by a strange-looking adult named Gleesome Goodday crashes on the beach.
He promises to make life a hundred times more fun - with flying-powder, and coated skin so that noone ever has to bathe again - and even nails the sun to their sky. But Hulda and Brimir soon discover that their endless fun has consequences they could never have imagined. Could it be that Gleesome Goodday is not everything he seems ?
An extraordinary adventure of magic and generosity, and a beautifully simple tale of selfishness and sacrifice, The Story of the Blue Planet will delight and challenge readers of all ages.

Titre original : Sagan af bláa hnettinum (2003)