Brimir and Hulda are best friends who live on a small island on a beautiful blue planet where there are only children and no adults. Their planet is wild and at times dangerous, but everything is free, everyone is their friend, and each day is more exciting than the last.

One day a rocket ship piloted by a strange-looking adult named Gleesome Goodday crashes on the beach. His businesscard claims he is a “Dream.ComeTrueMaker and joybringer,” and he promises to make life a hundred times more fun with sun-activated flying powder and magic-coated skin sothat no one ever has to bathe again. Goodday even nails the sun in the sky and creates agiant wolf to chase away the clouds so it can be playtime all the time. In exchange for these wonderful things, Goodday asks only for a little bit of the children’s youth—but what is youth compared to a lot more fun? Thechildren are so enamored with their new games that they forget all the simple activities they used to love.

During Goodday’s great flying competition, Hulda and Brimir fly too high to the sun and soar to the other side of planet, where they discoverit is dark all the time and the children are sickly and pale. Hulda and Br...