Many a windship has foundered on the deadly skyreef known as Sargasso Skies. Our three brave adventurers are on their way to Hammerland, home of the sinister steammoles, to find the fifth lost crown: the Crown of Wood. But now they're trapped, at the mercy of savage beasts and the eccentric Count Leopold. When the Count discovers how vital Trundle, Esmeralda and Jack will be in helping to build his amazing opera house, he'll never let them go! Will their quest come to a dismal end amid the wreckage of the Sargasso Skies?