The Thirteenth Tale, by Diane Setterfield

All morning I struggled with the sensation of stray wisps of one world seeping through the cracks of another. Do you know the feeling when you start reading a new book before the membrane of the last one has had time to close behind you? You leave the previous book with ideas and themes -- characters even -- caught in the fibers of your clothes, and when you open the new book, they are still with you.