Jake & the giant : the Gryphon chronicles, book two
(Book)

"Reunited with his aristocratic magical relatives, and finally getting used to his own supernatural powers, orphaned ex-pickpocket Jake Everton, the young Lord Griffon, travels on his first-ever holiday to beautiful Norway. There, at an amazing (steampunk!) Invention Convention, his cousin Archie, the boy genius, plans to unveil his marvelous new flying machine to the scientific world. But legends of the Viking Age die hard in Scandinavia. Danger strikes as famous Victorian scientists start mysteriously disappearing. When Archie vanishes, too, Jake races to the rescue. With the help of his trusty pet Gryphon, he tracks the kidnapper to his lair-- only to come face-to-face with an angry Norse giant."--Page 4 of cover.