Nadine Malkovich is a kind, thin girl who enjoys writing. She becomes fascinated by Susan who can stop hippos with her bare hands. She doesn't understand why she's so standoffish.
Her best friend, a grateful dragon called Flora, helps Nadine begin to piece together the puzzle. Together, they discover the ultimate weapon - the yellow, ripped rifle.
When bodies start turning up all over New York, Nadine begins to fear the worst. The dragon urges her to report Susan to the police and she knows she should, so what's stopping her?
She may resist Susan's bite, but can she resist her charms?
Will she be caught swimming with the vampire?