Books like Between Shades of Gray
Ruta Sepetys
Between Shades of Gray is 348 pages, about 6 hours 23 minutes at 250 words a minute.
7 books to read next
How long each takes
The Gentleman's Guide to Vice and Virtue 9.7 h 
Refugee 6.5 h 
I Survived the Sinking of the Titanic, 1912 2.2 h 
I Survived The Attacks of September 11, 2001 2.1 h 
Patty Reed's Doll 2.6 h 
I Survived The Japanese Tsunami, 2011 1.5 h 
I Survived The Battle of Gettysburg, 1863 1.9 h Bar height shows length. Estimated at 250 words a minute.