At the Mountains of Madness

by Howard Phillips Lovecraft

At the Mountains of Madness is a novella by horror writer H. P. Lovecraft, written in February/March 1931 and originally serialized in the February, March and April 1936 issues of Astounding Stories. The story is considered by Lovecraft scholar S. T. Joshi to represent the decisive "demythology" of the Cthulhu Mythos.