Narnia books by CS Lewis?
I loved the series of unfortunate events books after I read harry potter.
There's more than 10 books aswell, granted not as long but will still take a while
I think John Flanagan would be good for her data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
My sister's reading this all the time
My son raced through the Divergent series recently. As didmy wife and i data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
The Hunger Games was another favourite