Stewart Paul, Riddell Chris. Midnight over Sanctaphrax

Oxford ; New York : Random House Children’s Books, 2008. — 362 p.Far, far away, jutting out into the emptiness beyond, lies the Edge. Filled with strange peoples and terrifying creatures, this is a world unlike any other, where action— and danger—wait at every turn. Midnight over Sanctaphrax is the third book in the Twig Trilogy. Out in the open sky, a ferocious storm threatens the magnificent floating city of Sanctaphrax. Only Twig, who has dared to sail over the Edge, knows of the approaching danger. But before he can return home, his sky ship is destroyed, scattering his crew across the world and robbing him of all memory. Without Twig, will the Edge be lost forever?