Books like The Ka of Gifford Hillary
Dennis Wheatley
The Ka of Gifford Hillary is 400 pages, about 7 hours 20 minutes at 250 words a minute.
12 books to read next
How long each takes
Carmilla 1.7 h 
The Great God Pan 1.3 h 
The Fall of the House of Usher 42 min 
What Moves the Dead 3.2 h 
Vampire Junction 6.6 h 
The Masque of the Red Death 35 min 
Phantasma 8.5 h 
The Last House on Needless Street 6.5 h 
Slewfoot 5.9 h 
The Book Eaters 5.6 h 
Lost Souls 6.6 h 
Jamaica Inn 5.6 h Bar height shows length. Estimated at 250 words a minute.