Knight Sir Louis and the Sinister Snowball

Knight Sir Louis is champion knight at Castle Sideways. But there's a problem - King Burt's precious home Castle Sideways has vanished! Where could it be? Who took it? And is it still sideways? Louis, with his friends Clunkalot, Catalogue and Pearlin, set out on a quest to the freezing lands of Shiverinks, looking for frozen fiend, the Sinister Snowball...