The Call of Cthulhu - Book

The book discusses the documents left by the uncle of Francis Thurston, who died under mysterious circumstances. No one knows about these circumstances. Francis discovers a cult that worships mysterious horrors, commits mysterious crimes, and performs terrifying blood rituals in the depths of the swamps of Louisiana. It also talks about the discovery of a city that rises significantly above the sea level. This narrative is reminiscent of "The Call of Cthulhu" in English.