"Where do the clouds go when we can no longer see them?" asked Zip. "I don't know," said Trik. "Maybe they all end up where the world ends," said Flip. One simple question turns an ordinary day for three friends lying in the grass and staring at the sky into an extraordinary adventure. Zip, Trik, and Flip decide to set off to find where the world ends. The journey takes the trio across fantastical landscapes-a lakeside city on...