“Some secrets are meant to be known- but once known you can never forget them.”

“If I do find out the Secret,I won't be able to tell it to you-you know that right?And that doesn't mean I don't trust you.It's just because I can't.Sometimes even best friends have to keep secrets from each other."-Cass”

“But remember what I said about forgetting what I said?”

“This book will not harm you unless someone throws it at you which is a possibilty never to be discounted.”

“Your problem, it is not here' - he pointed the pen at Max-Ernest's throat - 'it is here' - he pointed the pen at Max-Ernest's chest. 'My heart is heavy, too. But you must be strong. This situation, it is very serious. It is not only Cass's life that is at stake. If she dies, the Secret, it will die too.”

“Who needs to go somewhere when you can read about it.”

“Generally speaking, books don't cause much harm. Except when you read them, that is. Then they cause all kinds of problems.”