Books like Jefferson's Sons
Kimberly Brubaker Bradley
Jefferson's Sons is 400 pages, about 7 hours 20 minutes at 250 words a minute.
12 books to read next
How long each takes
Meet Addy 1.3 h 
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Day of Tears 3.3 h 
Copper Sun 5.8 h 
Numbering All the Bones 3.1 h 
The Glory Field 7.7 h 
Happy Birthday, Addy! 1.1 h 
Changes for Addy 1.1 h 
Addy Saves the Day 1.2 h 
The Drinking Gourd Book and Tape 1.1 h 
Forge 5.9 h Bar height shows length. Estimated at 250 words a minute.