Darren Shan books in order
33 books in the catalogue, about 146 hours of reading in all; the shortest takes 4 hours and the longest 5 hours.
7 series and 17 standalone books in the catalogue.
The Saga of Darren Shan
17 books 1 
A Living Nightmare... (Cirque Du Freak #1) 4.9 h 2 
The Vampire's Assistant 4.5 h 3 
Tunnels of Blood 4.2 h 
Cirque du Freak 5.0 h 
Vampire Mountain 3.7 h 
The Vampire Prince 3.6 h 
Killers of the Dawn 4.0 h 
Allies of the Night 4.0 h 
Hunters of the Dusk 4.0 h 
Lord of the Shadows 4.0 h 
Sons of Destiny 4.5 h
A Living Nightmare... (Cirque Du Freak #1) 4.9 h 2 The Vampire's Assistant 4.5 h 3 Tunnels of Blood 4.2 h Cirque du Freak 5.0 h Vampire Blood Trilogy length not known
Vampire Mountain 3.7 h Vampire Rites Trilogy length not known
The Vampire Prince 3.6 h Killers of the Dawn 4.0 h The Lake of Souls length not known
Trials of Death length not known
Allies of the Night 4.0 h Hunters of the Dusk 4.0 h Lord of the Shadows 4.0 h Sons of Destiny 4.5 h Vampire Destiny Trilogy length not known
Vampire War Trilogy length not known
Vampire Blood Trilogy
3 booksVampire War Trilogy
3 booksVampire Rites Trilogy
3 booksThe Demonata
10 books 2 
Demon Thief 4.7 h 
Slawter 4.7 h 
Blood Beast 4.4 h 
Hell's Heroes 3.7 h
Demon Thief 4.7 h Lord Loss length not known
Bec length not known
Slawter 4.7 h Blood Beast 4.4 h Demon Apocalypse length not known
Death's Shadow length not known
Wolf Island length not known
Dark Calling length not known
10 Hell's Heroes 3.7 h Vampire Destiny Trilogy
3 booksThe Saga of Larten Crepsley
2 books
Ocean of Blood 4.5 h Birth of a Killer length not known
Standalone books
Bec 4.7 h 
Cirque Du Freak #1 5.1 h 
Trials of Death 4.1 h 
Cirque du Freak 4.1 h 
The Lake of Souls 4.8 h 
Cirque Du Freak #2 4.7 h 
Lord Loss 4.4 h 
Lord Loss (The Demonata) 5.0 h 
Demonata #1, The: Lord Loss 4.4 h 
Demonata #3, The: Slawter 4.4 h 
Demon Apocalypse 4.4 h 
Demonata #2, The: Demon Thief 4.7 h 
Demonata #4, The: Bec 4.7 h 
Death's Shadow 3.7 h 
The Demonata #6 4.7 h 
Procession of the Dead 5.1 h 
Zom-B 4.4 h