Midnight over Sanctaphrax - Paul Stewart

"Sanctaphrax will be destroyed by the energy of the Mother Storm!"

Far out in open sky, a ferocious storm is brewing. In its path is Sanctaphrax
a magnificent city built on a floating rock and tethered to the land by a massive chain.

Only Twig
a young sky pirate captain who has dared to sail over the Edge
has learned of the approaching danger. But his perilous voyage destroys his sky ship, hurling his crew into and beyond the Deepwoods, and robbing Twig of all memory

The third thrilling title in the The Edge Chronicles , a spectacular fantasy series that is brilliantly illustrated and teeming with gloriously imaginative characters.