Books like Diamond Boy
Michael Williams
Diamond Boy is 352 pages, about 6 hours 27 minutes at 250 words a minute.
7 books to read next
How long each takes
The Ear, the Eye, and the Arm 5.7 h 
A Long Walk to Water 2.5 h 
A Girl Named Disaster 5.8 h 
The Cay 2.6 h Bodyguard 5.0 h 
MiNRS 6.2 h 
Timothy of the Cay 2.9 h Bar height shows length. Estimated at 250 words a minute.