Sherlock Bones and his trusted accomplice Dr Catson are embroiled in a frenetic times-table adventure. They must follow a teasing trail of multiplication-themed puzzles. It's up to the reader to find the answer to each fiendish problem, all in the hope of foiling Professor Moriratty's evil plan. Ideal for children aged 7 to 11 (KS2), this charming activity book is a fill-in book allowing children to test their numeracy skills.