Books like The Lightning-struck Heart
T. J. Klune
The Lightning-struck Heart is 400 pages, about 7 hours 20 minutes at 250 words a minute.
12 books to read next
How long each takes
Harry Potter and the Philosopher's Stone 5.6 h 
Queste 11.2 h 
Darke 12.0 h 
Syren 11.5 h 
Ascendance 7.3 h 
Harry Potter (Series) 1-7 62.8 h 
Breakfast at Tiffany's 2.9 h 
Storm Front 6.5 h 
Wizard's First Rule 10.9 h 
Fool Moon 6.5 h 
The Time of Contempt 6.1 h 
The Icewind Dale Trilogy 18.9 h Bar height shows length. Estimated at 250 words a minute.