Sherlock 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 moiré area, allowing children to test their numeracy skills again and again.


Learning from home has never been so easy. This fun, educational, maths workbook allows children to test their numeracy skills with guided, times tables puzzles.

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 takes kids on an interactive adventure to improve their times tables skills.