E. Nesbit books in order
21 books in the catalogue, about 91 hours of reading in all; the shortest takes 32 minutes and the longest 14 hours.
3 series and 14 standalone books in the catalogue.
Psammead
3 books
Bastable
3 books
House of Arden
2 books
The House of Arden 4.4 h Harding's Luck length not known
Standalone books
The Railway Children 3.2 h 
Beautiful Stories from Shakespeare 3.3 h 
The Enchanted Castle 3.4 h 
The Magic City 3.0 h 
Wet Magic 2.6 h 
Ghost Stories 5.5 h 
The Magic World 3.2 h 
The Book of Dragons 2.1 h 
Melisande 53 min 
The Dark Descent 13.8 h 
The Color of Evil 8.2 h 
The Oxford Book of Gothic Tales 9.8 h 
Tales of Horror and Mystery 6.9 h 
The Power of Darkness 32 min