Books like Lady Audley's Secret
Mary Elizabeth Braddon
Lady Audley's Secret is 246 pages, about 4 hours 31 minutes at 250 words a minute.
12 books to read next
How long each takes
The Great Gatsby 3.4 h 
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All Your Perfects 5.9 h 
Middlemarch 14.7 h 
The Vegetarian 3.5 h 
The Bell 5.9 h 
Sometimes I Lie 6.7 h 
Behind Closed Doors 6.2 h 
Vanity Fair 12.8 h 
The Things They Carried 4.7 h 
Written on the Body 3.5 h 
The Stranger 7.3 h Bar height shows length. Estimated at 250 words a minute.