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.

Vampire Island

When old-world dangers threaten a race of fruit bat hybrids, where can they run to? New York City, of course! And that’s where we meet the Livingstone kids—Lexie, Hudson, and Maddy—trying to blend their “vampireness” with the regular people of the city. Unfortunately, their vampire traits keep complicating things. Lexie’s super speed, amazing strength, and poetry-quoting habit embarrass her in front of classmates—and her secret crush.