Title: The Mystery of the Singing Serpent
First published: March 31, 1980
Description: The three investigators become involved in witchcraft when they try to rescue a woman from the influence of snake worshippers.
Subjects: Fiction, Mystery and detective stories, Witchcraft, Children's stories, Occult fiction, Detective and mystery stories, Children's fiction, Adventure and adventurers, fiction, series:The Three Investigators Mystery, series:Die drei Fragezeichen, American Detective and mystery stories, English Detective and mystery stories, Translation into German