Castle in the stars. [book 2]

On the aethership's maiden voyage Seraphin and the Knights of Aether had prepared for everything--except treason. The villainous chamberlain wants to overthrow King Ludwig and claim the electro-aetheric technology for Prussia. The only escape for the king and his companions lies in the frosty skies above Bavaria. The ship's first flight is a success but their respite is short-lived. As long as the chamberlain is free to spread his lies these travelers will find no safe harbor. To save the king's throne they must push the ship even farther--out of the sky . . . and into the stars!