H. P. Lovecraft wrote "The Call of Cthulhu" in 1926, initiating the Cthulhu Mythos, one of the most widely imitated shared-world universes in weird fiction. Even in his lifetime, many other writers added to the Mythos, and after his death hundreds if not thousands of authors of weird, fantasy, and science fiction have added their distinctive elaborations on Lovecraft's basic themes and ideas. This volume features some of the best Cthulhu Mythos writing over the past century. Beginning with such rare but classic stories as Mearle Prout's "The House of the Worm" and Robert Barbour Johnson's "Far Below," from the pages of Weird Tales, the anthology moves on to James Wade's novella "The Deep Ones" and Ramsey Campbell's refreshing riff on the "forbidden book" motif, "The Franklyn Paragraphs." Acclaimed stories by T. E. D. Klein, Thomas Ligotti, Neil Gaiman, and W. H. Pugmire are also included. The book includes an array of original stories by such leading authors of Lovecraftian fiction as Caitlín R. Kiernan, Joseph S. Pulver, Sr., Donald Tyson, Cody Goodfellow, and Michael Shea. Gemma Files contributes a richly textured novella, while Jonathan Thomas offers a story full of his distinctive melding of horror and satire. A Mountain Walked is chock-full of stories old and new that highlight the endless variations that can be played on H. P. Lovecraft's signature creation. S. T. Joshi is the leading authority on H. P. Lovecraft. He is the author of I Am Providence: The Life and Times of H. P. Lovecraft and the editor of the Black Wings series of Lovecraftian fiction. He edits the Lovecraft Annual and the Weird Fiction Review.