Maureen Johnson books in order
13 books in the catalogue, about 100 hours of reading in all; the shortest takes 6 hours and the longest 12 hours.
3 series and 4 standalone books in the catalogue.
Truly Devious
6 books
Truly Devious 7.9 h 
The Vanishing Stair 7.1 h 
The Hand on the Wall 7.0 h 
The Box in the Woods 7.3 h 
Nine Liars 8.5 h The Velvet Knife length not known
13 Little Blue Envelopes
2 books
Shades of London
4 books
The Name of the Star 6.8 h 
The Madness Underneath 7.0 h The Boy in the Smoke length not known
The Shadow Cabinet length not known
