Books like The Dragonriders of Pern
Anne McCaffrey
The Dragonriders of Pern is 750 pages, about 13 hours 45 minutes at 250 words a minute.
12 books to read next
How long each takes
Dragonheart 12.0 h 
Star Wars - Dawn of the Jedi - Into the Void 6.5 h 
Chasm City 11.2 h 
Dragonsblood 8.8 h 
Fuzzy Nation 5.6 h 
The Martian Chronicles 4.8 h 
When Worlds Collide 6.3 h 
First Lensman 5.6 h 
Star Wars Trilogy 11.6 h 
Between Planets 4.1 h 
The Star Beast 3.8 h 
Old Man’s War 5.7 h Bar height shows length. Estimated at 250 words a minute.