Her Fearful Symmetry by Audrey Niffenegger (60)

Julia and Valentina are 21 year old twins who inherit a flat in London from an aunt they don't remember meeting. Arriving in London, the twins meet characters in the building, encounters with their aunt who haunts the flat, and other interesting incidents. This book is by the author of "The Time Traveler's Wife" which I loved. This book is fairly odd in its twists and turns. I enjoyed it but it's a little too odd for my taste.