"The House on the Borderland" (1908) by William Hope Hodgson is a hallucinatory horror novel in which two travelers discover a strange manuscript near a ruined house in rural Ireland. The text recounts its former owner's terrifying visions of cosmic abysses, monstrous swine-creatures, and the slow death of the universe itself. Blurring reality and nightmare, the book is an early masterpiece of cosmic horror that profoundly influenced later weird fiction.