Books like 20,000 Leagues Under the Sea
Jules Verne
20,000 Leagues Under the Sea is 438 pages, about 8 hours 2 minutes at 250 words a minute.
12 books to read next
How long each takes
Pacific Vortex! 5.0 h 
Raise the Titanic! 6.8 h 
Seaquest DSV 4.2 h 
Starfish 6.5 h 
The Dragon in the Sea 3.7 h 
The Toilers of the Sea 7.3 h 
The Ghost from the Grand Banks 5.0 h 
Into the Drowning Deep 8.1 h 
Maelstrom 7.0 h 
Deep Range 4.1 h 
Behemoth 9.2 h 
The Cyberiad 6.0 h Bar height shows length. Estimated at 250 words a minute.