The Lost Plot: The Invisible Library 4 Other Books in This Series
The Mortal Word: The Invisible Library 5
2018
The Secret Chapter: The Invisible Library 6
2019
The Dark Archive: The Invisible Library 7
2021
The Untold Story: The Invisible Library 8
2022
The Invisible Library: The Invisible Library Book 1
2015
The Masked City: The Invisible Library 2
2015
The Burning Page: The Invisible Library 3
2016