Sherlock Bones and the Addition and Subtraction Adventure, John Bigwood Pat Thomas London-born wonderkid Sancho's journey towards

London-born wonderkid Sancho's journey towards stardom has only just begun

this book lets children create amazing face art for parties

Whether it' s a fire truck racing to the rescue or a submarine exploring the deep sea

and fireworks

anything can happen

Sherlock Bones and the Addition and Subtraction Adventure, John Bigwood Pat Thomas London-born wonderkid Sancho's journey towardsSherlock Bones and Dr. Catson are entangled in an arithmetic adventure. They must follow a teasing trail of addition and subtraction themed maths puzzles, and it's up to the reader to solve each sum, all in the hope of foiling Professor Moriratty's evil plan. This charming maths activity book features 'Sherlock's Secret Solver' magnifying glass which reveals the answer to each puzzle when placed over a moir area, allowing children to test their