Brian Patten: The Story Giant, Illustrated by Chris Riddell (Second Hand)
The Story Giant is a master illusionist and the ur-storyteller. In his memory exists every tale ever told in the world – except for one, which has eluded him for millennia.
In a last desperate attempt to track down this lost tale, he draws four children from the different corners of the globe into his castle while they sleep, there to exchange the tales they know from their own cultures, to see if between them they can piece together the elusive missing story. For if he cannot track it down and install it in his memory, the whole facade of the castle will crumble and fall, and the Story Giant himself will die. And if he does, so will all the stories, and the world will be a poorer, duller, grimmer place.