A sky full of mysteries - A Dino in the stars

The Egg is making a comeback at Huma and Alek! Émilie, from Geneva's Museum dʹhistoire naturelle, has entrusted lʹŒuf to them for the vacations. And he has a new obsession: space! Together with Alek, they want to unlock the secrets of the cosmos. Just the thing: Huma knows an astrophysicist, Sylvia, who knows why the sky is blue... and much, much more. But there's no way she's going to find out that LʹŒuf talks, because that's a secret!