First-class, award-winning authors interweave a gripping narrative with stacks of fun facts. This work caters particularly for the tastes of reluctant readers who would rather read about topics they're interested in than fiction - especially suitable for boys. It features fun, top-quality illustrations on almost every page. It is tested by consultants at every stage of production. Spider and Lizzie have gone back in time - again! They're in the dark streets of Edinburgh, in 1861, filled with kidnappers, killers...and monsters?