Books like The Darkest Legacy
Alexandra Bracken
The Darkest Legacy is 573 pages, about 10 hours 30 minutes at 250 words a minute.
12 books to read next
How long each takes
Matched 6.8 h 
Uglies 7.9 h 
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Keeper of the Lost Cities 9.4 h 
Champion 7.2 h 
The White Mountains 3.2 h 
Exile 10.4 h 
Star Wars - Lost Stars 10.2 h 
Red Queen 8.1 h 
The Giver 3.7 h 
Ignite Me 7.6 h 
Restore Me 8.1 h Bar height shows length. Estimated at 250 words a minute.