Der kleine Vampir

The Little Vampire (German: "Der kleine Vampir") is the title of a series of children's fantasy books created in 1979 by Angela Sommer-Bodenburg. The overall plot deals with the friendship between a human boy called Anton and Rüdiger, a vampire boy. The basic idea dates back to 1976, when Sommer-Bodenburg wrote short stories about the adventures of the little vampire and a human boy, finally collecting them and forming the series' plot from them.

Protagonist Anton Bohnsack, an ordinary 9-year-old boy, is fascinated by vampires until befriending one (called Rüdiger) of a vampire clan, the Schlottersteins, who reside in the local cemetery. Little by little, Anton befriends Rüdiger’s younger sister Anna and older brother Lumpi. Anton undertakes frequent nightly “trips” with Rüdiger and Anna, wherein Anton must hide his presence (and his friendship with Rüdiger) from hostile vampires, his own parents, and the fanatic Geiermeier, the cemetery's caretaker.

Anton is 9 years old and attends the 3rd grade. He likes reading horror stories, especially vampire stories like those written by Sheridan Le Fanu or Hugh Walpole. After becoming involved in the world of vampires, he goes great lengths to assist both his new friends, Rüdiger and Anna, and their family (who are not fully aware of Anton's friendship with Rüdiger) against potential dangers, including his own parents and especially Geiermeier.

Rüdiger is the second youngest of the Schlotterstein clan, and was turned into a vampire when he was 11. Though mostly only interested in his own benefit, he never abandons his friends. He shows the vampires' world to Anton and meets him as often as possible. He has a lot of respect for his older brother Lumpi and tries to emulate him. There are typical siblings troubles between him and his sister Anna.

Anna is the youngest of the Schlotterstein children and was turned into a vampire at the age of 9. Shortly after Rüdiger met Anton, he introduces Anna to his human friend, starting a close friendship between the two. In fact, both Anna and Anton develop a crush on each other, but their respective natures as human and vampire pose an impenetrable barrier for a more serious relationship.
Initially, Anna was known as "Anna die Zahnlose" ("Anna the Toothless") because she didn't want to become a true vampire and drank milk as a substitute nourishment, though later on she gives in to her true nature, although her affection for Anton still remains strong. In the end of the series, she is appointed the successor of the German vampire leader, Elisabeth die Naschhafte.