Books like George's Marvelous Medicine
Roald Dahl
George's Marvelous Medicine is 112 pages, about 2 hours 3 minutes at 250 words a minute.
12 books to read next
How long each takes
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Ramona Quimby, Age 8 3.5 h 
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Last Stop on Market Street 35 min 
The Great Gilly Hopkins 2.7 h Bar height shows length. Estimated at 250 words a minute.