The Keeper of What Cannot Be Told (Paperback) (ISBN-13: 9798999559838)

Sophie Sage is lonely... and her weekly homeschool group at the library never changes that. When classes are over, she roams the children's section by herself looking for the next Henrietta Holt book. Until one day, she meets a woman who is invisible.

Jada Tamsin, Master of the Books, is one of the Unseen: an ancient people with special talents who are invisible to most. In the secret tunnels beneath the library, she lives surrounded by her books and records the history of her people.

But as Sophie and Jada begin their peculiar friendship, everything is threatened when Lilith-Jada's sister and the Master of The Sword-tries to remake the very fabric of reality itself.