Have you taken a look at the sticky threads in Recommended Resources on books for different developmental interest levels? At this point, her reading level is well above that of most adults, so you may also wish to look at some of the classics of English literature (there are various lists of the top 100 classic novels that you can search for on the internet). Do you have topics or adult themes that you are trying to avoid for her, or is she able to handle most topics?

...pronounced like the long vowel and first letter of the alphabet...