For a more magical and fantasy - based story, 'The Lord of the Rings' trilogy is a classic. It has an elaborate world - building and a great story of good versus evil.
If she is into coming - of - age stories, 'To Kill a Mockingbird' is a wonderful option. It deals with important themes like racism and moral growth in a very engaging way.
If she likes adventure, 'The Adventures of Tom Sawyer' is a great choice. It's full of exciting escapades and interesting characters.