The Call of Cthulhu recap

Francis Wayland Thurston inherits papers from his granduncle, Professor Angell, and investigates a clay image made by the sculptor Henry Wilcox during a wave of disturbing dreams. Angell's notes connect it to Inspector Legrasse's earlier raid on a murderous Louisiana cult whose idol depicts Cthulhu, an ancient being said to sleep in the drowned city of R'lyeh. A newspaper report leads Thurston to the account of Norwegian sailor Gustaf Johansen. Johansen's crew found R'lyeh temporarily raised above the Pacific and opened a structure that released Cthulhu. The being killed several men, but Johansen escaped by ramming it with a yacht before the city sank again. Johansen later died mysteriously. Thurston concludes that the cult and its god are real, that Angell and Johansen may have been silenced, and that his own life is now threatened by the knowledge he has assembled.

Francis Wayland Thurston inherits a locked box after the death of his granduncle, Professor George Gammell Angell. It contains notes labeled as research into a Cthulhu cult and a clay relief showing an unfamiliar symbol and a monstrous figure. The relief was made by Henry Anthony Wilcox, a young sculptor who asked Angell to identify writing he had seen in a dream. After a mild earthquake, Wilcox experienced repeated visions of enormous wet stone structures and heard sounds he rendered as names including Cthulhu and R'lyeh. During the same weeks he became feverish, then recovered and lost interest in the dreams. Angell had collected reports showing that artists and other sensitive people around the world suffered unusual dreams or agitation during that period, while most people did not. Thurston initially suspects that Wilcox learned of Angell's research and staged the episode, but conversations with the sculptor convince him that the account was sincere. He then turns to an older part of Angell's papers concerning a police inspector and a matching idol.

Angell's earlier record describes New Orleans police inspector John Raymond Legrasse presenting a strange idol to an archaeological meeting in 1908. Legrasse had seized it during a raid in the Louisiana swamps after women and children disappeared from a nearby community. Police found a violent nighttime ceremony around the idol and captured several participants. The scholars cannot identify its material, writing, or artistic tradition, but Professor William Channing Webb recalls seeing a nearly identical object linked to an isolated Arctic cult. A prisoner named Castro explains that scattered groups worship ancient beings who came to Earth before humanity. Their high priest Cthulhu lies preserved in the drowned city of R'lyeh and can reach human minds through dreams. The cult expects the city to rise when the stars are properly aligned, allowing Cthulhu's return. The close agreement between Legrasse's evidence, Webb's encounter, and Wilcox's later sculpture overturns Thurston's suspicion of a hoax. He also questions Angell's sudden death after the professor was jostled by a sailor and begins to wonder whether the cult deliberately silenced him.

Thurston finds a newspaper account of a derelict yacht recovered in the Pacific with one survivor, Norwegian sailor Gustaf Johansen, and an idol resembling Legrasse's. He travels to Australia to inspect the object, then to Norway, where Johansen's widow gives him her late husband's English manuscript. Johansen records that the schooner Emma was attacked by the armed yacht Alert after being ordered away from certain waters. The Emma's crew prevailed, took the Alert, and followed its course to a newly risen island of massive, disorienting stone structures. Opening a great portal in the city released Cthulhu. Most of the sailors were killed or vanished; Johansen and one companion reached the Alert. Johansen drove the yacht into the pursuing being, rupturing its body, but saw it begin to reform as he escaped. The city sank again, his companion died, and Johansen alone was alive when another ship found the yacht. His own later death under suspicious circumstances convinces Thurston that both he and Angell may have been murdered by the cult. Thurston finishes his record believing Cthulhu's emergence was real, fearing his knowledge has doomed him, and asking that the papers not be made public.

Johansen's manuscript says that the sailors accidentally freed Cthulhu after entering the risen city of R'lyeh. Johansen and one companion escaped to the yacht Alert while the creature killed or scattered the others. Johansen drove the vessel directly into Cthulhu, whose disrupted body immediately began to reform, and only Johansen was still alive when another ship found the drifting yacht. He later died in Norway under suspicious circumstances. Thurston now sees Wilcox's dreams, Legrasse's cult, and the Alert's voyage as evidence of one hidden reality: Cthulhu and related beings exist, and their temporary emergence ended only when R'lyeh sank again. Convinced that Angell and Johansen were murdered for what they knew, Thurston expects the cult may also kill him. He leaves his account with the plea that the assembled papers remain concealed rather than draw anyone else toward the same knowledge.