The Dream-Quest of Unknown Kadath is a novella by H. P. Lovecraft (1890–1937) published by Arkham House posthumously in 1943 in the collection Beyond the Wall of Sleep. Begun probably in the autumn of 1926, it was completed on January 22, 1927 and was unpublished in his lifetime. It is both the longest of the stories that make up his Dream Cycle and the longest Lovecraft work to feature protagonist Randolph Carter. Along with his 1927 novel The Case of Charles Dexter Ward, it can be considered one of the significant achievements of that period of Lovecraft's writing. The Dream-Quest combines elements of horror and fantasy into an epic tale that illustrates the scope and wonder of humankind's ability to dream.