Books like Half of a Yellow Sun
Chimamanda Ngozi Adichie
Half of a Yellow Sun is 500 pages, about 9 hours 10 minutes at 250 words a minute.
12 books to read next
How long each takes
Slaughterhouse-Five 3.8 h 
A Gentleman in Moscow 9.4 h 
Days Without End 5.5 h 
Life After Life 9.7 h 
On War 8.5 h 
In Memoriam 7.3 h 
Small Country 4.0 h 
Cutting for Stone 12.0 h 
Notes from the Underground 2.4 h 
There There 5.6 h 
Les Misérables 10.0 h 
Precious Bane 5.4 h Bar height shows length. Estimated at 250 words a minute.