Well, actually, not moving on from doom and gloom at all. A has now finished watching all 5 series of Horrible Histories on DVD and has read all of the books. I am frantically scouring libraries, bookshops and ebooks to try to find something which will continue to fuel her love of reading history.
We have recently acquired several books about WW1, being the 100th anniversary of its start, there are lots to be had at the moment. We've not got round to looking at all of them yet, but a particularly wonderful one has been The History of the First World War in 100 objects. It's not aimed at children, and in fact, the text is too dense for them (and, sometimes for me I must admit - I do mainly just look at the pictures!), but the objects have fuelled some very interesting discussions with both kids. It's quite expensive, but the good old Book People have it at a heavily reduced price at the moment. Highly recommended for adults, teenagers and younger children to look at with a parent - some of it is highly upsetting so you will want to pick and choose which bits you read with them.