Sweetblood is the name Lucy Szabo uses when she visits the Transylvania Room, an Internet chat room for self-described vampires. Lucy scoffs at some of the participants, sure that they are merely blood-sucking wannabes, but one named Draco sounds convincingly real. Lucy has a theory about the origin of vampirism; an insulin-dependent diabetic herself, she postulates that many of the classic characteristics of vampires were based on the symptoms of untreated diabetes during the Middle Ages. Lucy feels misunderstood by her parents, is routinely angry, and hides her loneliness behind a wisecracking Goth façade. She begins to disregard the constant monitoring her condition requires and ignores serious warning signs. Meanwhile, she meets the real Draco; he is the adult host at a gathering of Goth teens. Although the middle-aged man is clearly a social predator and not a “real” vampire, he handily manipulates Lucy by appealing to her obvious intelligence. After reaching a severe state of potentially fatal ketoacidosis, Lucy begins to gain a new perspective on her diabetes, but retains enough of her prickly attitude to stay credible. The concept of vampirism as an ignorant interpretation of diabetes is an ingenious idea, providing a solid base for this highly original tale. (Ages 12–15)

Sixteen-year-old Lucy Szabo is Undead -- at least according to her own theories about vampirism. Lucy believes that the first vampires -- with their pale skin, long teeth, and uncontrollable thirst -- were dying diabetics. And she should know. She's a diabetic herself.
When Lucy becomes involved with Draco -- a self-proclaimed "real" vampire she meets in the Transylvania Internet chat room -- her world begins crashing down around her. Caught up in late-night parties and Goth culture, she begins to lose control of her grades, relationships, and health. Lucy realizes she needs to make some important choices, and fast. But it may already be too late.