Books like City of Heavenly Fire
Cassandra Clare
City of Heavenly Fire is 725 pages, about 13 hours 18 minutes at 250 words a minute.
12 books to read next
How long each takes
The Young Elites 7.2 h 
Harry Potter and the Philosopher's Stone 5.6 h 
'Salem’s Lot 9.3 h 
Under the Dome 19.7 h 
Needful Things 12.8 h 
Forge of Darkness 13.9 h 
Tricked 6.8 h 
Hexed 6.1 h 
Fire & Blood 16.1 h 
The Dragonbone Chair 14.4 h 
The Day Watch 9.1 h 
Song of Susannah 8.5 h Bar height shows length. Estimated at 250 words a minute.