Between life and death there is a library, and within that library, the shelves go on forever. Every book provides a chance to try another life you could have lived. To see how things would be if you had made other choices . . . Would you have done anything different, if you had the chance to undo your regrets?”

A dazzling novel about all the choices that go into a life well lived, from the internationally bestselling author of Reasons to Stay Alive and How To Stop Time.

Somewhere out beyond the edge of the universe there is a library that contains an infinite number of books, each one the story of another reality.