Books like The Secret of the Mosque
Barbara Cartland
The Secret of the Mosque is 164 pages, about 3 hours at 250 words a minute.
8 books to read next
How long each takes
Lawless 5.9 h 
Angel in Scarlet 11.0 h 
Stormswift 7.6 h 
Dark Before the Rising Sun: 9.5 h 
A Heritage of Shadows 5.9 h 
Chance the Winds of Fortune 9.3 h 
Love Me, Marietta: 10.3 h 
The Chatelaine 10.3 h Bar height shows length. Estimated at 250 words a minute.