Druuna is a popular erotic science fiction an fantasy comic book character created by Italian cartoonist Paolo Eleuteri Serpieri, featured prominently in Metal Hurlant and Heavy Metal magazines. Druuna is the main character, and has starred in eight volumes of the Morbus Gravis series between 1985 and 2003: Morbus Gravis, Morbus Gravis 2: Druuna, Creatura, Carnivora, Mandragora, Aphrodisia, The Forgotten Planet and Clone. The series is noteworthy for featuring perhaps the most explicit content in terms of both graphic violence and sex in comics. Creatura, in fact, features near-totally explicit sexual penetration, and the three subsequent books feature totally uncensored penetration, but the series returned to a non-explicit depiction of penetration in such scenes with The Forgotten Planet. The main character is also featured in Serpieri's numerous sketchbooks, such as Obsession, Druuna X, Druuna X 2, Croquis, Serpieri Sketchbook, Serpieri Sketchbook 2 and The Sweet Smell of Woman. These books were successful, selling more than a million copies in twelve languages. Serpieri's depiction of well-endowed heroines like Druuna has caused him to be described as "the Master of the Ass".