Books like Mummy's Little Girl
Jane Elliott
Mummy's Little Girl is 368 pages, about 6 hours 45 minutes at 250 words a minute.
6 books to read next
How long each takes
Every Heart a Doorway 3.2 h 
Lullabies for Little Criminals 6.1 h 
Secrets in the Shadows 7.3 h 
April Shadows 7.9 h 
Child of Darkness 7.5 h 
Ghost Wall 2.9 h Bar height shows length. Estimated at 250 words a minute.