Books like Once Upon a Time
A. A. Milne, A. Milne
Once Upon a Time is 334 pages, about 6 hours 7 minutes at 250 words a minute.
12 books to read next
How long each takes
Mufaro's Beautiful Daughters 35 min 
The Castle of Llyr 3.8 h 
Calling on Dragons 4.5 h 
Talking to Dragons 4.7 h 
Dragonsong 3.6 h 
Cress 10.3 h 
Tuesdays at the Castle 4.5 h 
Rumpelstiltskin 41 min 
The King's Stilts 53 min 
The Land of Stories 2.4 h 
The King's Equal 1.2 h 
Wednesdays in the Tower 4.7 h Bar height shows length. Estimated at 250 words a minute.