"Mesmerizing...an exquisite rendering of what one might call feelings at the subatomic level." -The New York Times From the author of Heaven and Earth, a sensational novel about whether a "prime number" can ever truly connect with someone else A prime number is a lonely thing. It can only be divided by itself or by one, and it never truly fits with another. Alice and Mattia are both "primes"-misfits haunted by early tragedies. When the two meet as teenagers, they recognize in each other a kindred, damaged spirit. Years later, a chance encounter reunites them and forces a lifetime of concealed ... continue