The book draws on the creative and interactive features of adventure games and applies them to a series of exciting and imaginative maths learning exercises based on a common theme or challenge. The problems are linked by being set in a Victorian detective story a"la Sherlock Holmes; each problem brings a piece of information which contributes to the overall solution. The problem solving theme is highly motivating and typically children will be genuinely excited as they progress through the adventure and eventually complete the final problem.