Isadora 'Isa' Vargas is a young orphan trying to make sense of her unique abilities that include heightened senses and immense strength. At school, she is the brunt of kids' jokes and cruel teasing, and also the distrust of the teachers and other parents around her. As she grows, her appearance changes--she still looks mostly human, but not completely. By the time she is eighteen, and has faced many challenges in her unusual life, Isa meets...