Early one autumn afternoon in pursuit of an elusive book on her shelves, Susan Hill encountered dozens of others that she had never read, or forgotten she owned, or wanted to read for a second time. The discovery inspired her to embark on a year-long voyage through her books, forsaking new purchases in order to get to know her own collection again. A book which is left on a shelf for a decade is a dead thing, but it is also a chrysalis, packed...