They learn from a shopkeeper that Duke Gavarni has been using all of the town 's magic fuel to power the floating fortress Soara .
That his soldiers are kidnapping the town 's girls and taking them to his fortress where they are never seen again .
They learn from a shopkeeper that Duke Gavarni has been using all of the town 's magic fuel to power the floating fortress Soara and that his soldiers are kidnapping the town 's girls and taking them to his fortress where they are never seen again .