Our house has gone mad on the 'Johnny Joe's Time Travel' colouring in book. It's great and gruesome and encourages kids to add their own drawings. Archie is crazy about it and spends all his spare time filling them up with as much texta as the paper can tolerate. Every night as I tuck him in new pictures swirl around his bed and his fingers curled on his chest, are rainbows of red, blue, yellow and green.