Sir Marvin Muscleton is a weirdo.Well, everyone in Spindly Limb thinks so, anyway.That's because he isn't skinny, slender, twiggy or slim like everyone else.He is chunky, and muscly, with arms like tree-trunks and legs as hard as rock Yes indeed, Sir Marvin Muscleton sticks out like a sore, and very muscular, thumb But when a blundering Boulder Beast from across the sea comes lumbering over the hill, Sir Marvin proves to be the only thing standing between triumph and disaster.