Books like Cold Days
Jim Butcher, James Marsters
Cold Days is 578 pages, about 10 hours 36 minutes at 250 words a minute.
12 books to read next
How long each takes
Harry Potter and the Philosopher's Stone 5.6 h 
The Poppy War 10.0 h 
Mercy Falls 6.5 h 
Ninth House 8.8 h 
The Magicians 7.6 h 
True Crime 6.6 h 
Harry Potter (Series) 1-7 62.8 h 
The Hanging Tree 5.9 h 
Whispers Underground 7.9 h 
Wizard's First Rule 10.9 h 
The Scarlet Gospels 8.8 h 
Hellboy 1.3 h Bar height shows length. Estimated at 250 words a minute.