I need some recommendations for a challenging book for an voracious reader who can read advanced books and understand them.

Question

I need some recommendations for a challenging book for an voracious reader who can read advanced books and understand them.     
Somewhere of a reading level of 8th,9th or  
10th.

Ms. Sue · Answer

Check these lists. (Broken Link Removed) (Broken Link Removed) (Broken Link Removed)