EG The Spaghetti Tangle, The Bubblegum Tree, Harriet Bean? Spotted them while faffing about on amazon, but there are no mention of them on his official website and I've never seen them in a bookshop which I find kind of surprising considering the profile of his adult books (perhaps they're just out of print at the moment).
If they're any good I think they'd make ideal readers for my 6-year-old, but as there are so many, I thought I'd see if anyone had read them and could recommend two or three. Thought perhaps I'd buy the three Harriet Bean books, but really like the look of the Bursting Balloons and Chocolate Money mysteries.
Thanks!