Adèle is a popular fiction writer who eventually becomes a journalist when her research introduces her to an occult criminal underground.
An independent and strong female character, Adèle was initially created to be a villain. Jacques Tardi wanted her independence to be especially unique, so the series was set in the 1910s. She first appeared in the newspaper Sud-Ouest in 1976.
In 2010 Adèle Blanc-Sec was portrayed by Louise Bourgoin in The Extraordinary Adventures of Adèle Blanc-Sec.