Howard Lovecraft and the Kingdom of Madness is a 2018 Canadian animated film written, directed and produced by Sean Patrick O'Reilly and sequel to 2016 and 2017 films Howard Lovecraft and the Frozen Kingdom and Howard Lovecraft and the Undersea Kingdom.

Plot

After the events that occurred in the Frozen Kingdom and the Undersea Kingdom, young Howard finds himself at home. The walls of reality are thinning making the world vulnerable to dangers from beyond. Howard follows his father, Uncle Randolph and Dr. Henry Armitage as they journey to Antarctica, to prevent awaking of the destroyer of worlds, Cthulhu.