I'm sending presents to a 7 year old and a 4 year old I don't see often. My son is 14 and I've happily forgotten how to do these ages. They are both really good readers. I bought Clever Polly and the Stupid Wolf for the 7 year old with a view to her reading it herself, and a reasonably complex picture book called Moon for the 4 year old. I'm struck with doubt - could give Clever Polly to the 4 year old and I have another thing I can give to the 7 year old. Aagh! Any thoughts?