Books like The Golden Triangle
Maurice Leblanc
The Golden Triangle is 293 pages, about 5 hours 22 minutes at 250 words a minute.
12 books to read next
How long each takes
The Mysterious Island 9.0 h 
And Then There Were None 4.1 h 
Blaze 6.0 h 
The Godfather 8.3 h 
Death Comes as the End 4.2 h 
Father Brown 4.7 h 
System of the World 16.4 h 
The Talented Mr. Ripley 5.3 h 
The Blue Room 3.2 h 
Arsène Lupin 4.3 h 
The Perfume of the Lady in Black 6.0 h 
Fatale 2.8 h Bar height shows length. Estimated at 250 words a minute.