Books by Jonny Marx & Kirstin Swanson

  • SHRB 7 years +

    Sherlock Bones and the Addition and Subtraction Adventure (Paperback)

    Jonny Marx & Kirstin Swanson

    Hand-picked favourites
    This is an arithmetic adventure starring Sherlock Bones and Dr. Catson - two characters who will help your children solve all kinds of maths problems.

    The detective duo have to follow a trail of addition and subtraction-themed puzzles in an attempt to scupper Professor Moriratty's evil plan. Will your children be able to help?

    This amazing activity book features Sherlock's Secret Solver - a magnifying glass-esque tool that reveals the answer to puzzles when placed over a moire area - meaning children can practice their answers over and over again.
    • £2.99
    • RRP £6.99
    • Save £4.00
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