My dd (8 years) loves horses and would read horse books all year long if she could. Only problem is she reads most of them in less than a day (eg. Heartland, Sheltie, Sandy Lane Stables) and wants something a bit more complex (and would give me better value for money if bought!). For example, she is currently reading Lord of the Rings, which she is enjoying but would rather it was about horses.
For information, she has already read Black Beauty, My Friend Flicka (and sequels) and Silver Brumby. She also has the Flambards series but doesn't like them (presumably because they're too much about the people and not the horses!).
She does also like fantasy books so any suggestions for these welcomed.