Good Knight, Bad Knight and the Flying Machine

This term, Berk (Good Knight), Godwin (Bad Knight) and Warren are working on a flying machine that will hopefully take Godwin home to visit his parents, who are fighting cow-thieving pirates. Their test flights always seem to end in disaster though, so the boys try to enlist the help of Warren's supremely talented sister Willow. But after spending years trapped underground battling evil hordes, Willow is more interested in knuckling down to her schoolwork. She's especially interested in Beast Taming classes, and there is one beast she particularly interested in - an irate, stinky dragon with a dangerous grudge.