Books like Sonic the Hedgehog
Sonic Scribes
Sonic the Hedgehog is 512 pages, about 9 hours 23 minutes at 250 words a minute.
12 books to read next
How long each takes
Sonic Select 2.3 h 
Sonic Boom Vol. 2 1.9 h 
Redwall 6.5 h 
The Return of Zita the Spacegirl 4.4 h 
Little Robot 2.5 h 
Robot Dreams 4.0 h 
Bunny Vs Monkey 1.2 h 
Star Wars 2.5 h 
Maximum Ride. The Manga, Vol. 4 4.1 h 
Dr. Maniac Vs. Robby Schwartz 2.8 h 
Teen Titans 2.6 h 
ポケットモンスターSPECIAL #1 5.4 h Bar height shows length. Estimated at 250 words a minute.