Books like Zodiac Academy 6
Caroline Peckham, Susanne Valenti
Zodiac Academy 6 is 664 pages, about 12 hours 10 minutes at 250 words a minute.
12 books to read next
How long each takes
Alchemised 17.9 h A Dawn of Onyx 7.3 h When the Moon Hatched 11.7 h 
A Touch Of Ruin 7.7 h 
Phantasma 8.5 h Death's Obsession 3.3 h 
A Game of Fate 6.8 h 
A Touch of Malice 8.4 h Their Vicious Darling 4.5 h The Dark One 4.2 h A Promise of Peridot 8.5 h 
Haunting Adeline 11.4 h Bar height shows length. Estimated at 250 words a minute.