I don't have a definite answer for you. The Mimic might be based on a combination of folklore, myths, or the author's imagination. It's hard to pin down a specific source.
Octopus novels referred to novels written by or related to octopuses. We can conclude that Octopus is an audio novel broadcaster. His works include One in Fourteen, Onishi, Midnight Coffin opener, and The Crossroad. In addition, there was a novel called After Becoming an Octopus, which told the story of an octopus's adventure at the bottom of the sea. However, these search results did not provide detailed information about Octopus's novels, such as his genre, style, or storyline. Therefore, we are unable to give a more specific answer.
Octopus novels referred to novels written by or related to octopuses. Octopus was an audio novel broadcaster. His works included One in Fourteen, The Hidden Ghost, The Midnight Coffin opener, and The Crossroad. In addition, there was a novel called After Becoming an Octopus, which told the story of an octopus's adventure at the bottom of the sea. Other than that, there were also octopus-related novels by other authors, such as Stone Octopus's " I Will Be Able to Use the Talent That Descends From Heaven " and " Three Palaces and Six Halls ", as well as " Lily and the Octopus ". However, more information about the octopus novel, such as content, style, and so on, was not provided in the search results.