The Edge Chronicles 6: Midnight Over Sanctaphrax (Book 3 of the Twig Saga) by Paul Stewart

The third book of the Twig Saga, part of the bestselling Edge Chronicles series.

Far out in open sky, a storm is brewing. In its path is Sanctaphrax—a 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 his memories.

PAUL STEWART and CHRIS RIDDELL are the creators of the hugely successful Edge Chronicles, which have sold over three million copies and have been translated into over thirty languages worldwide. Their other collaborations include the Barnaby Grimes series and the Far Flung Adventures, the first of which, Fergus Crane, won the 2004 Gold Smarties Prize.