True Believer by Nicholas Sparks

Jeremy Marsh is the ultimate young New Yorker. He's also an expert on debunking the supernatural. When he receives a letter from Boone Creek, North Carolina, about ghostly lights appearing in a cemetery, he can't resist driving down to investigate. Here, in this tightly knit community, Lexie Darnell runs the town's library. Disappointed by past relationships, she is sure of one thing: her future is in Boone Creek, close to all the people she loves. From the moment Jeremy sets eyes on Lexie, he is intrigued. And Lexie, while hesitating to trust this outsider, finds herself thinking of him more than she cares to admit.

Now, if they are to be together, Jeremy Marsh must do something he's never done before: take a giant leap of faith. A story about taking chances and following your heart, True Believer will make you, too, believe in the miracle of love.