Books like An Offer from a Gentleman
Julia Quinn
An Offer from a Gentleman is 416 pages, about 7 hours 38 minutes at 250 words a minute.
12 books to read next
How long each takes
A Kiss at Midnight 6.8 h 
Frederica 7.0 h 
Dark Angel 5.0 h 
The Grand Sophy 6.3 h 
Serena 5.3 h 
The Impoverished Viscount 4.1 h 
Refining Felicity 3.2 h 
A Lady's Deception 6.4 h 
Valentines / Road to Ruin 8.2 h 
Double Masquerade 4.1 h 
Hard Times 6.0 h 
The Country Girls 3.5 h Bar height shows length. Estimated at 250 words a minute.