Imagine you could hide a secret. Forever.

Emmett Farmer is a binder's apprentice. His job is to hand-craft beautiful books and, within each, to capture something unique and extraordinary: a memory.

If you have something you want to forget, or a secret to hide, he can bind it – and you will never have to remember the pain it caused.

In a vault under his mentor's workshop, row upon row of books – and secrets – are meticulously stored and recorded.

Then one day Emmett makes an astonishing discovery: one of the volumes has his name on it.